CVE-2023-20109Known exploitationNetwork attack vector

Code execution via malformed GET VPN attributes

Published Sep 27, 2023 · Updated Oct 21, 2025

Out-of-bounds write in Cisco IOS and IOS XE GET VPN allows remote authenticated users to execute code or reload affected devices. The GDOI and G-IKEv2 handlers insufficiently validate attributes received from a key server, permitting an out-of-bounds write. Exploitation requires control of a mutually authenticated key server or administrative reconfiguration of a group member, and grants full device control or forces a reload.

CVSS severity6.6
Medium
EPSS probability2.34%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds write in Cisco IOS and IOS XE GET VPN allows remote authenticated users to execute code or reload affected devices. The GDOI and G-IKEv2 handlers insufficiently validate attributes received from a key server, permitting an out-of-bounds write. Exploitation requires control of a mutually authenticated key server or administrative reconfiguration of a group member, and grants full device control or forces a reload.

The record

CVE
CVE-2023-20109
Published
Sep 27, 2023
Updated
Oct 21, 2025
Vendor
ClamAV
Product
Cisco IOS
Classifications
CWE-787
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Sep 27, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 21, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=12.4(22)MD
  2. Affected versionversion=12.4(22)MD1
  3. Affected versionversion=12.4(22)MD2
  4. Affected versionversion=12.4(22)MDA
  5. Affected versionversion=12.4(22)MDA1
  6. Affected versionversion=12.4(22)MDA2
  7. Affected versionversion=12.4(22)MDA3
  8. Affected versionversion=12.4(22)MDA4
  9. Affected versionversion=12.4(22)MDA5
  10. Affected versionversion=12.4(22)MDA6
  11. Affected versionversion=12.4(22)T
  12. Affected versionversion=12.4(22)T1
  13. Affected versionversion=12.4(22)T2
  14. Affected versionversion=12.4(22)T3
  15. Affected versionversion=12.4(22)T4
  16. Affected versionversion=12.4(22)T5
  17. Affected versionversion=12.4(22)XR1
  18. Affected versionversion=12.4(22)XR10
  19. Affected versionversion=12.4(22)XR11
  20. Affected versionversion=12.4(22)XR12
  21. Affected versionversion=12.4(22)XR2
  22. Affected versionversion=12.4(22)XR3
  23. Affected versionversion=12.4(22)XR4
  24. Affected versionversion=12.4(22)XR5
  25. Affected versionversion=12.4(22)XR6
  26. Affected versionversion=12.4(22)XR7
  27. Affected versionversion=12.4(22)XR8
  28. Affected versionversion=12.4(22)XR9
  29. Affected versionversion=12.4(24)MD
  30. Affected versionversion=12.4(24)MD1
  31. Affected versionversion=12.4(24)MD2
  32. Affected versionversion=12.4(24)MD3
  33. Affected versionversion=12.4(24)MD4
  34. Affected versionversion=12.4(24)MD5
  35. Affected versionversion=12.4(24)MD6
  36. Affected versionversion=12.4(24)MD7
  37. Affected versionversion=12.4(24)MDA1
  38. Affected versionversion=12.4(24)MDA10
  39. Affected versionversion=12.4(24)MDA11
  40. Affected versionversion=12.4(24)MDA12
  41. Affected versionversion=12.4(24)MDA13
  42. Affected versionversion=12.4(24)MDA2
  43. Affected versionversion=12.4(24)MDA3
  44. Affected versionversion=12.4(24)MDA4
  45. Affected versionversion=12.4(24)MDA5
  46. Affected versionversion=12.4(24)MDA6
  47. Affected versionversion=12.4(24)MDA7
  48. Affected versionversion=12.4(24)MDA8
  49. Affected versionversion=12.4(24)MDA9
  50. Affected versionversion=12.4(24)MDB
  51. Affected versionversion=12.4(24)MDB1
  52. Affected versionversion=12.4(24)MDB10
  53. Affected versionversion=12.4(24)MDB11
  54. Affected versionversion=12.4(24)MDB12
  55. Affected versionversion=12.4(24)MDB13
  56. Affected versionversion=12.4(24)MDB14
  57. Affected versionversion=12.4(24)MDB15
  58. Affected versionversion=12.4(24)MDB16
  59. Affected versionversion=12.4(24)MDB17
  60. Affected versionversion=12.4(24)MDB18
  61. Affected versionversion=12.4(24)MDB19
  62. Affected versionversion=12.4(24)MDB3
  63. Affected versionversion=12.4(24)MDB4
  64. Affected versionversion=12.4(24)MDB5
  65. Affected versionversion=12.4(24)MDB5a
  66. Affected versionversion=12.4(24)MDB6
  67. Affected versionversion=12.4(24)MDB7
  68. Affected versionversion=12.4(24)MDB8
  69. Affected versionversion=12.4(24)MDB9
  70. Affected versionversion=12.4(24)T
  71. Affected versionversion=12.4(24)T1
  72. Affected versionversion=12.4(24)T2
  73. Affected versionversion=12.4(24)T3
  74. Affected versionversion=12.4(24)T3e
  75. Affected versionversion=12.4(24)T3f
  76. Affected versionversion=12.4(24)T4
  77. Affected versionversion=12.4(24)T4a
  78. Affected versionversion=12.4(24)T4b
  79. Affected versionversion=12.4(24)T4c
  80. Affected versionversion=12.4(24)T4d
  81. Affected versionversion=12.4(24)T4e
  82. Affected versionversion=12.4(24)T4f
  83. Affected versionversion=12.4(24)T4l
  84. Affected versionversion=12.4(24)T5
  85. Affected versionversion=12.4(24)T6
  86. Affected versionversion=12.4(24)T7
  87. Affected versionversion=12.4(24)T8
  88. Affected versionversion=12.4(24)YG
  89. Affected versionversion=12.4(24)YG1
  90. Affected versionversion=12.4(24)YG2
  91. Affected versionversion=12.4(24)YG3
  92. Affected versionversion=12.4(24)YG4
  93. Affected versionversion=15.0(1)M
  94. Affected versionversion=15.0(1)M1
  95. Affected versionversion=15.0(1)M10
  96. Affected versionversion=15.0(1)M2
  97. Affected versionversion=15.0(1)M3
  98. Affected versionversion=15.0(1)M4
  99. Affected versionversion=15.0(1)M5
  100. Affected versionversion=15.0(1)M6
  101. Affected versionversion=15.0(1)M7
  102. Affected versionversion=15.0(1)M8
  103. Affected versionversion=15.0(1)M9
  104. Affected versionversion=15.0(1)MR
  105. Affected versionversion=15.0(1)S
  106. Affected versionversion=15.0(1)S1
  107. Affected versionversion=15.0(1)S2
  108. Affected versionversion=15.0(1)S3a
  109. Affected versionversion=15.0(1)S4
  110. Affected versionversion=15.0(1)S4a
  111. Affected versionversion=15.0(1)S5
  112. Affected versionversion=15.0(1)S6
  113. Affected versionversion=15.0(1)XA
  114. Affected versionversion=15.0(1)XA1
  115. Affected versionversion=15.0(1)XA2
  116. Affected versionversion=15.0(1)XA3
  117. Affected versionversion=15.0(1)XA4
  118. Affected versionversion=15.0(1)XA5
  119. Affected versionversion=15.0(2a)EX5
  120. Affected versionversion=15.0(2)EA
  121. Affected versionversion=15.0(2)EA1
  122. Affected versionversion=15.0(2)EJ
  123. Affected versionversion=15.0(2)EJ1
  124. Affected versionversion=15.0(2)EK
  125. Affected versionversion=15.0(2)EK1
  126. Affected versionversion=15.0(2)EX
  127. Affected versionversion=15.0(2)EX1
  128. Affected versionversion=15.0(2)EX10
  129. Affected versionversion=15.0(2)EX11
  130. Affected versionversion=15.0(2)EX12
  131. Affected versionversion=15.0(2)EX13
  132. Affected versionversion=15.0(2)EX2
  133. Affected versionversion=15.0(2)EX3
  134. Affected versionversion=15.0(2)EX4
  135. Affected versionversion=15.0(2)EX5
  136. Affected versionversion=15.0(2)EX8
  137. Affected versionversion=15.0(2)EY
  138. Affected versionversion=15.0(2)EY1
  139. Affected versionversion=15.0(2)EY2
  140. Affected versionversion=15.0(2)EY3
  141. Affected versionversion=15.0(2)EZ
  142. Affected versionversion=15.0(2)MR
  143. Affected versionversion=15.0(2)SE
  144. Affected versionversion=15.0(2)SE1
  145. Affected versionversion=15.0(2)SE10
  146. Affected versionversion=15.0(2)SE10a
  147. Affected versionversion=15.0(2)SE11
  148. Affected versionversion=15.0(2)SE12
  149. Affected versionversion=15.0(2)SE13
  150. Affected versionversion=15.0(2)SE2
  151. Affected versionversion=15.0(2)SE3
  152. Affected versionversion=15.0(2)SE4
  153. Affected versionversion=15.0(2)SE5
  154. Affected versionversion=15.0(2)SE6
  155. Affected versionversion=15.0(2)SE7
  156. Affected versionversion=15.0(2)SE8
  157. Affected versionversion=15.0(2)SE9
  158. Affected versionversion=15.1(1)S
  159. Affected versionversion=15.1(1)S1
  160. Affected versionversion=15.1(1)S2
  161. Affected versionversion=15.1(1)SG
  162. Affected versionversion=15.1(1)SG1
  163. Affected versionversion=15.1(1)SG2
  164. Affected versionversion=15.1(1)SY
  165. Affected versionversion=15.1(1)SY1
  166. Affected versionversion=15.1(1)SY2
  167. Affected versionversion=15.1(1)SY3
  168. Affected versionversion=15.1(1)SY4
  169. Affected versionversion=15.1(1)SY5
  170. Affected versionversion=15.1(1)SY6
  171. Affected versionversion=15.1(1)T
  172. Affected versionversion=15.1(1)T1
  173. Affected versionversion=15.1(1)T2
  174. Affected versionversion=15.1(1)T3
  175. Affected versionversion=15.1(1)T4
  176. Affected versionversion=15.1(1)T5
  177. Affected versionversion=15.1(1)XB
  178. Affected versionversion=15.1(2)GC
  179. Affected versionversion=15.1(2)GC1
  180. Affected versionversion=15.1(2)GC2
  181. Affected versionversion=15.1(2)S
  182. Affected versionversion=15.1(2)S1
  183. Affected versionversion=15.1(2)S2
  184. Affected versionversion=15.1(2)SG
  185. Affected versionversion=15.1(2)SG1
  186. Affected versionversion=15.1(2)SG2
  187. Affected versionversion=15.1(2)SG3
  188. Affected versionversion=15.1(2)SG4
  189. Affected versionversion=15.1(2)SG5
  190. Affected versionversion=15.1(2)SG6
  191. Affected versionversion=15.1(2)SG7
  192. Affected versionversion=15.1(2)SG8
  193. Affected versionversion=15.1(2)SY
  194. Affected versionversion=15.1(2)SY1
  195. Affected versionversion=15.1(2)SY10
  196. Affected versionversion=15.1(2)SY11
  197. Affected versionversion=15.1(2)SY12
  198. Affected versionversion=15.1(2)SY13
  199. Affected versionversion=15.1(2)SY14
  200. Affected versionversion=15.1(2)SY15
  201. Affected versionversion=15.1(2)SY16
  202. Affected versionversion=15.1(2)SY2
  203. Affected versionversion=15.1(2)SY3
  204. Affected versionversion=15.1(2)SY4
  205. Affected versionversion=15.1(2)SY4a
  206. Affected versionversion=15.1(2)SY5
  207. Affected versionversion=15.1(2)SY6
  208. Affected versionversion=15.1(2)SY7
  209. Affected versionversion=15.1(2)SY8
  210. Affected versionversion=15.1(2)SY9
  211. Affected versionversion=15.1(2)T
  212. Affected versionversion=15.1(2)T0a
  213. Affected versionversion=15.1(2)T1
  214. Affected versionversion=15.1(2)T2
  215. Affected versionversion=15.1(2)T2a
  216. Affected versionversion=15.1(2)T3
  217. Affected versionversion=15.1(2)T4
  218. Affected versionversion=15.1(2)T5
  219. Affected versionversion=15.1(3)MRA
  220. Affected versionversion=15.1(3)MRA1
  221. Affected versionversion=15.1(3)MRA2
  222. Affected versionversion=15.1(3)MRA3
  223. Affected versionversion=15.1(3)MRA4
  224. Affected versionversion=15.1(3)S
  225. Affected versionversion=15.1(3)S0a
  226. Affected versionversion=15.1(3)S1
  227. Affected versionversion=15.1(3)S2
  228. Affected versionversion=15.1(3)S3
  229. Affected versionversion=15.1(3)S4
  230. Affected versionversion=15.1(3)S5
  231. Affected versionversion=15.1(3)S5a
  232. Affected versionversion=15.1(3)S6
  233. Affected versionversion=15.1(3)SVB1
  234. Affected versionversion=15.1(3)SVB2
  235. Affected versionversion=15.1(3)SVD
  236. Affected versionversion=15.1(3)SVD1
  237. Affected versionversion=15.1(3)SVD2
  238. Affected versionversion=15.1(3)SVE
  239. Affected versionversion=15.1(3)SVF
  240. Affected versionversion=15.1(3)SVF1
  241. Affected versionversion=15.1(3)SVG
  242. Affected versionversion=15.1(3)SVJ2
  243. Affected versionversion=15.1(3)T
  244. Affected versionversion=15.1(3)T1
  245. Affected versionversion=15.1(3)T2
  246. Affected versionversion=15.1(3)T3
  247. Affected versionversion=15.1(3)T4
  248. Affected versionversion=15.1(4)GC
  249. Affected versionversion=15.1(4)GC1
  250. Affected versionversion=15.1(4)GC2
  251. Affected versionversion=15.1(4)M
  252. Affected versionversion=15.1(4)M1
  253. Affected versionversion=15.1(4)M10
  254. Affected versionversion=15.1(4)M2
  255. Affected versionversion=15.1(4)M3
  256. Affected versionversion=15.1(4)M3a
  257. Affected versionversion=15.1(4)M4
  258. Affected versionversion=15.1(4)M5
  259. Affected versionversion=15.1(4)M6
  260. Affected versionversion=15.1(4)M7
  261. Affected versionversion=15.1(4)M8
  262. Affected versionversion=15.1(4)M9
  263. Affected versionversion=15.2(1)E
  264. Affected versionversion=15.2(1)E1
  265. Affected versionversion=15.2(1)E2
  266. Affected versionversion=15.2(1)E3
  267. Affected versionversion=15.2(1)EY
  268. Affected versionversion=15.2(1)GC
  269. Affected versionversion=15.2(1)GC1
  270. Affected versionversion=15.2(1)GC2
  271. Affected versionversion=15.2(1)S
  272. Affected versionversion=15.2(1)S1
  273. Affected versionversion=15.2(1)S2
  274. Affected versionversion=15.2(1)SY
  275. Affected versionversion=15.2(1)SY0a
  276. Affected versionversion=15.2(1)SY1
  277. Affected versionversion=15.2(1)SY1a
  278. Affected versionversion=15.2(1)SY2
  279. Affected versionversion=15.2(1)SY3
  280. Affected versionversion=15.2(1)SY4
  281. Affected versionversion=15.2(1)SY5
  282. Affected versionversion=15.2(1)SY6
  283. Affected versionversion=15.2(1)SY7
  284. Affected versionversion=15.2(1)SY8
  285. Affected versionversion=15.2(2a)E1
  286. Affected versionversion=15.2(2a)E2
  287. Affected versionversion=15.2(2)E
  288. Affected versionversion=15.2(2)E1
  289. Affected versionversion=15.2(2)E10
  290. Affected versionversion=15.2(2)E2
  291. Affected versionversion=15.2(2)E3
  292. Affected versionversion=15.2(2)E4
  293. Affected versionversion=15.2(2)E5
  294. Affected versionversion=15.2(2)E5a
  295. Affected versionversion=15.2(2)E5b
  296. Affected versionversion=15.2(2)E6
  297. Affected versionversion=15.2(2)E7
  298. Affected versionversion=15.2(2)E7b
  299. Affected versionversion=15.2(2)E8
  300. Affected versionversion=15.2(2)E9
  301. Affected versionversion=15.2(2)EA
  302. Affected versionversion=15.2(2)EA1
  303. Affected versionversion=15.2(2)EA2
  304. Affected versionversion=15.2(2)EA3
  305. Affected versionversion=15.2(2)EB
  306. Affected versionversion=15.2(2)EB1
  307. Affected versionversion=15.2(2)EB2
  308. Affected versionversion=15.2(2)GC
  309. Affected versionversion=15.2(2)S
  310. Affected versionversion=15.2(2)S0a
  311. Affected versionversion=15.2(2)S0c
  312. Affected versionversion=15.2(2)S1
  313. Affected versionversion=15.2(2)S2
  314. Affected versionversion=15.2(2)SY
  315. Affected versionversion=15.2(2)SY1
  316. Affected versionversion=15.2(2)SY2
  317. Affected versionversion=15.2(2)SY3
  318. Affected versionversion=15.2(3a)E
  319. Affected versionversion=15.2(3)E
  320. Affected versionversion=15.2(3)E1
  321. Affected versionversion=15.2(3)E2
  322. Affected versionversion=15.2(3)E3
  323. Affected versionversion=15.2(3)E4
  324. Affected versionversion=15.2(3)E5
  325. Affected versionversion=15.2(3)EA
  326. Affected versionversion=15.2(3)GC
  327. Affected versionversion=15.2(3)GC1
  328. Affected versionversion=15.2(4)E
  329. Affected versionversion=15.2(4)E1
  330. Affected versionversion=15.2(4)E10
  331. Affected versionversion=15.2(4)E10a
  332. Affected versionversion=15.2(4)E10d
  333. Affected versionversion=15.2(4)E2
  334. Affected versionversion=15.2(4)E3
  335. Affected versionversion=15.2(4)E4
  336. Affected versionversion=15.2(4)E5
  337. Affected versionversion=15.2(4)E5a
  338. Affected versionversion=15.2(4)E6
  339. Affected versionversion=15.2(4)E7
  340. Affected versionversion=15.2(4)E8
  341. Affected versionversion=15.2(4)E9
  342. Affected versionversion=15.2(4)EA
  343. Affected versionversion=15.2(4)EA1
  344. Affected versionversion=15.2(4)EA3
  345. Affected versionversion=15.2(4)EA4
  346. Affected versionversion=15.2(4)EA5
  347. Affected versionversion=15.2(4)EA6
  348. Affected versionversion=15.2(4)EA7
  349. Affected versionversion=15.2(4)EA8
  350. Affected versionversion=15.2(4)EA9
  351. Affected versionversion=15.2(4)EA9a
  352. Affected versionversion=15.2(4)EC1
  353. Affected versionversion=15.2(4)EC2
  354. Affected versionversion=15.2(4)GC
  355. Affected versionversion=15.2(4)GC1
  356. Affected versionversion=15.2(4)GC2
  357. Affected versionversion=15.2(4)GC3
  358. Affected versionversion=15.2(4)M
  359. Affected versionversion=15.2(4)M1
  360. Affected versionversion=15.2(4)M10
  361. Affected versionversion=15.2(4)M11
  362. Affected versionversion=15.2(4)M2
  363. Affected versionversion=15.2(4)M3
  364. Affected versionversion=15.2(4)M4
  365. Affected versionversion=15.2(4)M5
  366. Affected versionversion=15.2(4)M6
  367. Affected versionversion=15.2(4)M6a
  368. Affected versionversion=15.2(4)M7
  369. Affected versionversion=15.2(4)M8
  370. Affected versionversion=15.2(4)M9
  371. Affected versionversion=15.2(4)S
  372. Affected versionversion=15.2(4)S1
  373. Affected versionversion=15.2(4)S2
  374. Affected versionversion=15.2(4)S3
  375. Affected versionversion=15.2(4)S3a
  376. Affected versionversion=15.2(4)S4
  377. Affected versionversion=15.2(4)S4a
  378. Affected versionversion=15.2(4)S5
  379. Affected versionversion=15.2(4)S6
  380. Affected versionversion=15.2(4)S7
  381. Affected versionversion=15.2(5a)E
  382. Affected versionversion=15.2(5a)E1
  383. Affected versionversion=15.2(5b)E
  384. Affected versionversion=15.2(5c)E
  385. Affected versionversion=15.2(5)E
  386. Affected versionversion=15.2(5)E1
  387. Affected versionversion=15.2(5)E2
  388. Affected versionversion=15.2(5)E2b
  389. Affected versionversion=15.2(5)E2c
  390. Affected versionversion=15.2(5)EA
  391. Affected versionversion=15.2(5)EX
  392. Affected versionversion=15.2(6)E
  393. Affected versionversion=15.2(6)E0a
  394. Affected versionversion=15.2(6)E0c
  395. Affected versionversion=15.2(6)E1
  396. Affected versionversion=15.2(6)E2
  397. Affected versionversion=15.2(6)E2a
  398. Affected versionversion=15.2(6)E2b
  399. Affected versionversion=15.2(6)E3
  400. Affected versionversion=15.2(6)EB
  401. Affected versionversion=15.2(7a)E0b
  402. Affected versionversion=15.2(7b)E0b
  403. Affected versionversion=15.2(7)E
  404. Affected versionversion=15.2(7)E0a
  405. Affected versionversion=15.2(7)E0b
  406. Affected versionversion=15.2(7)E0s
  407. Affected versionversion=15.2(7)E1
  408. Affected versionversion=15.2(7)E1a
  409. Affected versionversion=15.2(7)E2
  410. Affected versionversion=15.2(7)E2a
  411. Affected versionversion=15.2(7)E3
  412. Affected versionversion=15.2(7)E3k
  413. Affected versionversion=15.2(7)E4
  414. Affected versionversion=15.2(7)E5
  415. Affected versionversion=15.2(7)E6
  416. Affected versionversion=15.2(7)E7
  417. Affected versionversion=15.2(7)E8
  418. Affected versionversion=15.2(8)E
  419. Affected versionversion=15.2(8)E1
  420. Affected versionversion=15.2(8)E2
  421. Affected versionversion=15.2(8)E3
  422. Affected versionversion=15.2(8)E4
  423. Affected versionversion=15.3(1)S
  424. Affected versionversion=15.3(1)S1
  425. Affected versionversion=15.3(1)S2
  426. Affected versionversion=15.3(1)SY
  427. Affected versionversion=15.3(1)SY1
  428. Affected versionversion=15.3(1)SY2
  429. Affected versionversion=15.3(1)T
  430. Affected versionversion=15.3(1)T1
  431. Affected versionversion=15.3(1)T2
  432. Affected versionversion=15.3(1)T3
  433. Affected versionversion=15.3(1)T4
  434. Affected versionversion=15.3(2)S
  435. Affected versionversion=15.3(2)S1
  436. Affected versionversion=15.3(2)S2
  437. Affected versionversion=15.3(2)T
  438. Affected versionversion=15.3(2)T1
  439. Affected versionversion=15.3(2)T2
  440. Affected versionversion=15.3(2)T3
  441. Affected versionversion=15.3(2)T4
  442. Affected versionversion=15.3(3)M
  443. Affected versionversion=15.3(3)M1
  444. Affected versionversion=15.3(3)M10
  445. Affected versionversion=15.3(3)M2
  446. Affected versionversion=15.3(3)M3
  447. Affected versionversion=15.3(3)M4
  448. Affected versionversion=15.3(3)M5
  449. Affected versionversion=15.3(3)M6
  450. Affected versionversion=15.3(3)M7
  451. Affected versionversion=15.3(3)M8
  452. Affected versionversion=15.3(3)M8a
  453. Affected versionversion=15.3(3)M9
  454. Affected versionversion=15.3(3)S
  455. Affected versionversion=15.3(3)S1
  456. Affected versionversion=15.3(3)S10
  457. Affected versionversion=15.3(3)S1a
  458. Affected versionversion=15.3(3)S2
  459. Affected versionversion=15.3(3)S3
  460. Affected versionversion=15.3(3)S4
  461. Affected versionversion=15.3(3)S5
  462. Affected versionversion=15.3(3)S6
  463. Affected versionversion=15.3(3)S7
  464. Affected versionversion=15.3(3)S8
  465. Affected versionversion=15.3(3)S8a
  466. Affected versionversion=15.3(3)S9
  467. Affected versionversion=15.4(1)CG
  468. Affected versionversion=15.4(1)CG1
  469. Affected versionversion=15.4(1)S
  470. Affected versionversion=15.4(1)S1
  471. Affected versionversion=15.4(1)S2
  472. Affected versionversion=15.4(1)S3
  473. Affected versionversion=15.4(1)S4
  474. Affected versionversion=15.4(1)SY
  475. Affected versionversion=15.4(1)SY1
  476. Affected versionversion=15.4(1)SY2
  477. Affected versionversion=15.4(1)SY3
  478. Affected versionversion=15.4(1)SY4
  479. Affected versionversion=15.4(1)T
  480. Affected versionversion=15.4(1)T1
  481. Affected versionversion=15.4(1)T2
  482. Affected versionversion=15.4(1)T3
  483. Affected versionversion=15.4(1)T4
  484. Affected versionversion=15.4(2)CG
  485. Affected versionversion=15.4(2)S
  486. Affected versionversion=15.4(2)S1
  487. Affected versionversion=15.4(2)S2
  488. Affected versionversion=15.4(2)S3
  489. Affected versionversion=15.4(2)S4
  490. Affected versionversion=15.4(2)T
  491. Affected versionversion=15.4(2)T1
  492. Affected versionversion=15.4(2)T2
  493. Affected versionversion=15.4(2)T3
  494. Affected versionversion=15.4(2)T4
  495. Affected versionversion=15.4(3)M
  496. Affected versionversion=15.4(3)M1
  497. Affected versionversion=15.4(3)M10
  498. Affected versionversion=15.4(3)M2
  499. Affected versionversion=15.4(3)M3
  500. Affected versionversion=15.4(3)M4
  501. Affected versionversion=15.4(3)M5
  502. Affected versionversion=15.4(3)M6
  503. Affected versionversion=15.4(3)M6a
  504. Affected versionversion=15.4(3)M7
  505. Affected versionversion=15.4(3)M8
  506. Affected versionversion=15.4(3)M9
  507. Affected versionversion=15.4(3)S
  508. Affected versionversion=15.4(3)S1
  509. Affected versionversion=15.4(3)S10
  510. Affected versionversion=15.4(3)S2
  511. Affected versionversion=15.4(3)S3
  512. Affected versionversion=15.4(3)S4
  513. Affected versionversion=15.4(3)S5
  514. Affected versionversion=15.4(3)S6
  515. Affected versionversion=15.4(3)S6a
  516. Affected versionversion=15.4(3)S7
  517. Affected versionversion=15.4(3)S8
  518. Affected versionversion=15.4(3)S9
  519. Affected versionversion=15.5(1)S
  520. Affected versionversion=15.5(1)S1
  521. Affected versionversion=15.5(1)S2
  522. Affected versionversion=15.5(1)S3
  523. Affected versionversion=15.5(1)S4
  524. Affected versionversion=15.5(1)SY
  525. Affected versionversion=15.5(1)SY1
  526. Affected versionversion=15.5(1)SY10
  527. Affected versionversion=15.5(1)SY11
  528. Affected versionversion=15.5(1)SY2
  529. Affected versionversion=15.5(1)SY3
  530. Affected versionversion=15.5(1)SY4
  531. Affected versionversion=15.5(1)SY5
  532. Affected versionversion=15.5(1)SY6
  533. Affected versionversion=15.5(1)SY7
  534. Affected versionversion=15.5(1)SY8
  535. Affected versionversion=15.5(1)SY9
  536. Affected versionversion=15.5(1)T
  537. Affected versionversion=15.5(1)T1
  538. Affected versionversion=15.5(1)T2
  539. Affected versionversion=15.5(1)T3
  540. Affected versionversion=15.5(1)T4
  541. Affected versionversion=15.5(2)S
  542. Affected versionversion=15.5(2)S1
  543. Affected versionversion=15.5(2)S2
  544. Affected versionversion=15.5(2)S3
  545. Affected versionversion=15.5(2)S4
  546. Affected versionversion=15.5(2)T
  547. Affected versionversion=15.5(2)T1
  548. Affected versionversion=15.5(2)T2
  549. Affected versionversion=15.5(2)T3
  550. Affected versionversion=15.5(2)T4
  551. Affected versionversion=15.5(3)M
  552. Affected versionversion=15.5(3)M0a
  553. Affected versionversion=15.5(3)M1
  554. Affected versionversion=15.5(3)M10
  555. Affected versionversion=15.5(3)M2
  556. Affected versionversion=15.5(3)M3
  557. Affected versionversion=15.5(3)M4
  558. Affected versionversion=15.5(3)M4a
  559. Affected versionversion=15.5(3)M5
  560. Affected versionversion=15.5(3)M6
  561. Affected versionversion=15.5(3)M6a
  562. Affected versionversion=15.5(3)M7
  563. Affected versionversion=15.5(3)M8
  564. Affected versionversion=15.5(3)M9
  565. Affected versionversion=15.5(3)S
  566. Affected versionversion=15.5(3)S0a
  567. Affected versionversion=15.5(3)S1
  568. Affected versionversion=15.5(3)S10
  569. Affected versionversion=15.5(3)S1a
  570. Affected versionversion=15.5(3)S2
  571. Affected versionversion=15.5(3)S3
  572. Affected versionversion=15.5(3)S4
  573. Affected versionversion=15.5(3)S5
  574. Affected versionversion=15.5(3)S6
  575. Affected versionversion=15.5(3)S6a
  576. Affected versionversion=15.5(3)S6b
  577. Affected versionversion=15.5(3)S7
  578. Affected versionversion=15.5(3)S8
  579. Affected versionversion=15.5(3)S9
  580. Affected versionversion=15.5(3)S9a
  581. Affected versionversion=15.5(3)SN
  582. Affected versionversion=15.6(1)S
  583. Affected versionversion=15.6(1)S1
  584. Affected versionversion=15.6(1)S2
  585. Affected versionversion=15.6(1)S3
  586. Affected versionversion=15.6(1)S4
  587. Affected versionversion=15.6(1)T
  588. Affected versionversion=15.6(1)T0a
  589. Affected versionversion=15.6(1)T1
  590. Affected versionversion=15.6(1)T2
  591. Affected versionversion=15.6(1)T3
  592. Affected versionversion=15.6(2)S
  593. Affected versionversion=15.6(2)S1
  594. Affected versionversion=15.6(2)S2
  595. Affected versionversion=15.6(2)S3
  596. Affected versionversion=15.6(2)S4
  597. Affected versionversion=15.6(2)SN
  598. Affected versionversion=15.6(2)SP
  599. Affected versionversion=15.6(2)SP1
  600. Affected versionversion=15.6(2)SP10
  601. Affected versionversion=15.6(2)SP2
  602. Affected versionversion=15.6(2)SP3
  603. Affected versionversion=15.6(2)SP4
  604. Affected versionversion=15.6(2)SP5
  605. Affected versionversion=15.6(2)SP6
  606. Affected versionversion=15.6(2)SP7
  607. Affected versionversion=15.6(2)SP8
  608. Affected versionversion=15.6(2)SP9
  609. Affected versionversion=15.6(2)T
  610. Affected versionversion=15.6(2)T1
  611. Affected versionversion=15.6(2)T2
  612. Affected versionversion=15.6(2)T3
  613. Affected versionversion=15.6(3)M
  614. Affected versionversion=15.6(3)M0a
  615. Affected versionversion=15.6(3)M1
  616. Affected versionversion=15.6(3)M1b
  617. Affected versionversion=15.6(3)M2
  618. Affected versionversion=15.6(3)M2a
  619. Affected versionversion=15.6(3)M3
  620. Affected versionversion=15.6(3)M3a
  621. Affected versionversion=15.6(3)M4
  622. Affected versionversion=15.6(3)M5
  623. Affected versionversion=15.6(3)M6
  624. Affected versionversion=15.6(3)M6a
  625. Affected versionversion=15.6(3)M6b
  626. Affected versionversion=15.6(3)M7
  627. Affected versionversion=15.6(3)M8
  628. Affected versionversion=15.6(3)M9
  629. Affected versionversion=15.7(3)M
  630. Affected versionversion=15.7(3)M0a
  631. Affected versionversion=15.7(3)M1
  632. Affected versionversion=15.7(3)M2
  633. Affected versionversion=15.7(3)M3
  634. Affected versionversion=15.7(3)M4
  635. Affected versionversion=15.7(3)M4a
  636. Affected versionversion=15.7(3)M4b
  637. Affected versionversion=15.7(3)M5
  638. Affected versionversion=15.7(3)M6
  639. Affected versionversion=15.7(3)M7
  640. Affected versionversion=15.7(3)M8
  641. Affected versionversion=15.7(3)M9
  642. Affected versionversion=15.8(3)M
  643. Affected versionversion=15.8(3)M0a
  644. Affected versionversion=15.8(3)M0b
  645. Affected versionversion=15.8(3)M1
  646. Affected versionversion=15.8(3)M10
  647. Affected versionversion=15.8(3)M1a
  648. Affected versionversion=15.8(3)M2
  649. Affected versionversion=15.8(3)M2a
  650. Affected versionversion=15.8(3)M3
  651. Affected versionversion=15.8(3)M3a
  652. Affected versionversion=15.8(3)M3b
  653. Affected versionversion=15.8(3)M4
  654. Affected versionversion=15.8(3)M5
  655. Affected versionversion=15.8(3)M6
  656. Affected versionversion=15.8(3)M7
  657. Affected versionversion=15.8(3)M8
  658. Affected versionversion=15.8(3)M9
  659. Affected versionversion=15.9(3)M
  660. Affected versionversion=15.9(3)M0a
  661. Affected versionversion=15.9(3)M1
  662. Affected versionversion=15.9(3)M2
  663. Affected versionversion=15.9(3)M2a
  664. Affected versionversion=15.9(3)M3
  665. Affected versionversion=15.9(3)M3a
  666. Affected versionversion=15.9(3)M3b
  667. Affected versionversion=15.9(3)M4
  668. Affected versionversion=15.9(3)M4a
  669. Affected versionversion=15.9(3)M5
  670. Affected versionversion=15.9(3)M6
  671. Affected versionversion=15.9(3)M6a
  672. Affected versionversion=15.9(3)M6b
  673. Affected versionversion=15.9(3)M7
  674. Affected versionversion=15.9(3)M7a

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

ClamAV · Cisco IOSversion=12.4(22)MD; version=12.4(22)MD1; version=12.4(22)MD2; version=12.4(22)MDA; version=12.4(22)MDA1; version=12.4(22)MDA2; version=12.4(22)MDA3; version=12.4(22)MDA4; version=12.4(22)MDA5; version=12.4(22)MDA6; version=12.4(22)T; version=12.4(22)T1; version=12.4(22)T2; version=12.4(22)T3; version=12.4(22)T4; version=12.4(22)T5; version=12.4(22)XR1; version=12.4(22)XR10; version=12.4(22)XR11; version=12.4(22)XR12; version=12.4(22)XR2; version=12.4(22)XR3; version=12.4(22)XR4; version=12.4(22)XR5; version=12.4(22)XR6; version=12.4(22)XR7; version=12.4(22)XR8; version=12.4(22)XR9; version=12.4(24)MD; version=12.4(24)MD1; version=12.4(24)MD2; version=12.4(24)MD3; version=12.4(24)MD4; version=12.4(24)MD5; version=12.4(24)MD6; version=12.4(24)MD7; version=12.4(24)MDA1; version=12.4(24)MDA10; version=12.4(24)MDA11; version=12.4(24)MDA12; version=12.4(24)MDA13; version=12.4(24)MDA2; version=12.4(24)MDA3; version=12.4(24)MDA4; version=12.4(24)MDA5; version=12.4(24)MDA6; version=12.4(24)MDA7; version=12.4(24)MDA8; version=12.4(24)MDA9; version=12.4(24)MDB; version=12.4(24)MDB1; version=12.4(24)MDB10; version=12.4(24)MDB11; version=12.4(24)MDB12; version=12.4(24)MDB13; version=12.4(24)MDB14; version=12.4(24)MDB15; version=12.4(24)MDB16; version=12.4(24)MDB17; version=12.4(24)MDB18; version=12.4(24)MDB19; version=12.4(24)MDB3; version=12.4(24)MDB4; version=12.4(24)MDB5; version=12.4(24)MDB5a; version=12.4(24)MDB6; version=12.4(24)MDB7; version=12.4(24)MDB8; version=12.4(24)MDB9; version=12.4(24)T; version=12.4(24)T1; version=12.4(24)T2; version=12.4(24)T3; version=12.4(24)T3e; version=12.4(24)T3f; version=12.4(24)T4; version=12.4(24)T4a; version=12.4(24)T4b; version=12.4(24)T4c; version=12.4(24)T4d; version=12.4(24)T4e; version=12.4(24)T4f; version=12.4(24)T4l; version=12.4(24)T5; version=12.4(24)T6; version=12.4(24)T7; version=12.4(24)T8; version=12.4(24)YG; version=12.4(24)YG1; version=12.4(24)YG2; version=12.4(24)YG3; version=12.4(24)YG4; version=15.0(1)M; version=15.0(1)M1; version=15.0(1)M10; version=15.0(1)M2; version=15.0(1)M3; version=15.0(1)M4; version=15.0(1)M5; version=15.0(1)M6; version=15.0(1)M7; version=15.0(1)M8; version=15.0(1)M9; version=15.0(1)MR; version=15.0(1)S; version=15.0(1)S1; version=15.0(1)S2; version=15.0(1)S3a; version=15.0(1)S4; version=15.0(1)S4a; version=15.0(1)S5; version=15.0(1)S6; version=15.0(1)XA; version=15.0(1)XA1; version=15.0(1)XA2; version=15.0(1)XA3; version=15.0(1)XA4; version=15.0(1)XA5; version=15.0(2a)EX5; version=15.0(2)EA; version=15.0(2)EA1; version=15.0(2)EJ; version=15.0(2)EJ1; version=15.0(2)EK; version=15.0(2)EK1; version=15.0(2)EX; version=15.0(2)EX1; version=15.0(2)EX10; version=15.0(2)EX11; version=15.0(2)EX12; version=15.0(2)EX13; version=15.0(2)EX2; version=15.0(2)EX3; version=15.0(2)EX4; version=15.0(2)EX5; version=15.0(2)EX8; version=15.0(2)EY; version=15.0(2)EY1; version=15.0(2)EY2; version=15.0(2)EY3; version=15.0(2)EZ; version=15.0(2)MR; version=15.0(2)SE; version=15.0(2)SE1; version=15.0(2)SE10; version=15.0(2)SE10a; version=15.0(2)SE11; version=15.0(2)SE12; version=15.0(2)SE13; version=15.0(2)SE2; version=15.0(2)SE3; version=15.0(2)SE4; version=15.0(2)SE5; version=15.0(2)SE6; version=15.0(2)SE7; version=15.0(2)SE8; version=15.0(2)SE9; version=15.1(1)S; version=15.1(1)S1; version=15.1(1)S2; version=15.1(1)SG; version=15.1(1)SG1; version=15.1(1)SG2; version=15.1(1)SY; version=15.1(1)SY1; version=15.1(1)SY2; version=15.1(1)SY3; version=15.1(1)SY4; version=15.1(1)SY5; version=15.1(1)SY6; version=15.1(1)T; version=15.1(1)T1; version=15.1(1)T2; version=15.1(1)T3; version=15.1(1)T4; version=15.1(1)T5; version=15.1(1)XB; version=15.1(2)GC; version=15.1(2)GC1; version=15.1(2)GC2; version=15.1(2)S; version=15.1(2)S1; version=15.1(2)S2; version=15.1(2)SG; version=15.1(2)SG1; version=15.1(2)SG2; version=15.1(2)SG3; version=15.1(2)SG4; version=15.1(2)SG5; version=15.1(2)SG6; version=15.1(2)SG7; version=15.1(2)SG8; version=15.1(2)SY; version=15.1(2)SY1; version=15.1(2)SY10; version=15.1(2)SY11; 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version=3.18.5SP; version=3.18.6SP; version=3.18.7SP; version=3.18.8aSP; version=3.18.9SP; version=3.3.0SG; version=3.3.1SG; version=3.3.2SG; version=3.4.0SG; version=3.4.1SG; version=3.4.2SG; version=3.4.3SG; version=3.4.4SG; version=3.4.5SG; version=3.4.6SG; version=3.4.7SG; version=3.4.8SG; version=3.5.0E; version=3.5.1E; version=3.5.2E; version=3.5.3E; version=3.6.0E; version=3.6.10E; version=3.6.1E; version=3.6.2aE; version=3.6.2E; version=3.6.3E; version=3.6.4E; version=3.6.5aE; version=3.6.5bE; version=3.6.5E; version=3.6.6E; version=3.6.7bE; version=3.6.7E; version=3.6.8E; version=3.6.9E; version=3.7.0bS; version=3.7.0S; version=3.7.1aS; version=3.7.1S; version=3.7.2S; version=3.7.2tS; version=3.7.3S; version=3.7.4aS; version=3.7.4S; version=3.7.5S; version=3.7.6S; version=3.7.7S; version=3.8.0E; version=3.8.0S; version=3.8.10E; version=3.8.1E; version=3.8.1S; version=3.8.2E; version=3.8.2S; version=3.8.3E; version=3.8.4E; version=3.8.5aE; version=3.8.5E; version=3.8.6E; version=3.8.7E; version=3.8.8E; version=3.8.9E; version=3.9.0aS; version=3.9.0E; version=3.9.0S; version=3.9.1aS; version=3.9.1E; version=3.9.1S; version=3.9.2E; version=3.9.2S

Published CVSS scores

6.6Cisco Systems, Inc.CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationReported
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

See the directory against your own environment.

Your stack

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