CVE-2025-20362Known exploitationNetwork attack vector

Unauthenticated restricted-endpoint access via crafted HTTP requests

Published Sep 25, 2025 · Updated Sep 25, 2025

Missing authorization in Cisco ASA and FTD VPN web servers allows remote attackers to access restricted remote-access VPN URL endpoints. The VPN web server improperly validates attacker-controlled HTTP(S) request input before enforcing authentication on restricted endpoint access. Exposure requires a vulnerable release with an SSL listener enabled by AnyConnect IKEv2, SSL VPN, or Mobile User Security; a combined attack variant also reloads unpatched devices.

CVSS severity6.5
Medium
EPSS probability87.09%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in Cisco ASA and FTD VPN web servers allows remote attackers to access restricted remote-access VPN URL endpoints. The VPN web server improperly validates attacker-controlled HTTP(S) request input before enforcing authentication on restricted endpoint access. Exposure requires a vulnerable release with an SSL listener enabled by AnyConnect IKEv2, SSL VPN, or Mobile User Security; a combined attack variant also reloads unpatched devices.

The record

CVE
CVE-2025-20362
Published
Sep 25, 2025
Updated
Sep 25, 2025
Vendor
ClamAV
Product
Cisco Adaptive Security Appliance (ASA) Software
Classifications
CWE-862, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 25, 2025Exploitation reportedCISA Known Exploited Vulnerabilities entry
  2. Sep 25, 2025CVE publishedPublication date reported by the CVE source.
  3. Sep 25, 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=9.12.1
  2. Affected versionversion=9.12.1.2
  3. Affected versionversion=9.12.1.3
  4. Affected versionversion=9.12.2
  5. Affected versionversion=9.12.2.1
  6. Affected versionversion=9.12.2.4
  7. Affected versionversion=9.12.2.5
  8. Affected versionversion=9.12.2.9
  9. Affected versionversion=9.12.3
  10. Affected versionversion=9.12.3.12
  11. Affected versionversion=9.12.3.2
  12. Affected versionversion=9.12.3.7
  13. Affected versionversion=9.12.3.9
  14. Affected versionversion=9.12.4
  15. Affected versionversion=9.12.4.10
  16. Affected versionversion=9.12.4.13
  17. Affected versionversion=9.12.4.18
  18. Affected versionversion=9.12.4.2
  19. Affected versionversion=9.12.4.24
  20. Affected versionversion=9.12.4.26
  21. Affected versionversion=9.12.4.29
  22. Affected versionversion=9.12.4.30
  23. Affected versionversion=9.12.4.35
  24. Affected versionversion=9.12.4.37
  25. Affected versionversion=9.12.4.38
  26. Affected versionversion=9.12.4.39
  27. Affected versionversion=9.12.4.4
  28. Affected versionversion=9.12.4.40
  29. Affected versionversion=9.12.4.41
  30. Affected versionversion=9.12.4.47
  31. Affected versionversion=9.12.4.48
  32. Affected versionversion=9.12.4.50
  33. Affected versionversion=9.12.4.52
  34. Affected versionversion=9.12.4.54
  35. Affected versionversion=9.12.4.55
  36. Affected versionversion=9.12.4.56
  37. Affected versionversion=9.12.4.58
  38. Affected versionversion=9.12.4.62
  39. Affected versionversion=9.12.4.65
  40. Affected versionversion=9.12.4.67
  41. Affected versionversion=9.12.4.7
  42. Affected versionversion=9.12.4.8
  43. Affected versionversion=9.14.1
  44. Affected versionversion=9.14.1.10
  45. Affected versionversion=9.14.1.15
  46. Affected versionversion=9.14.1.19
  47. Affected versionversion=9.14.1.30
  48. Affected versionversion=9.14.1.6
  49. Affected versionversion=9.14.2
  50. Affected versionversion=9.14.2.13
  51. Affected versionversion=9.14.2.15
  52. Affected versionversion=9.14.2.4
  53. Affected versionversion=9.14.2.8
  54. Affected versionversion=9.14.3
  55. Affected versionversion=9.14.3.1
  56. Affected versionversion=9.14.3.11
  57. Affected versionversion=9.14.3.13
  58. Affected versionversion=9.14.3.15
  59. Affected versionversion=9.14.3.18
  60. Affected versionversion=9.14.3.9
  61. Affected versionversion=9.14.4
  62. Affected versionversion=9.14.4.12
  63. Affected versionversion=9.14.4.13
  64. Affected versionversion=9.14.4.14
  65. Affected versionversion=9.14.4.15
  66. Affected versionversion=9.14.4.17
  67. Affected versionversion=9.14.4.22
  68. Affected versionversion=9.14.4.23
  69. Affected versionversion=9.14.4.24
  70. Affected versionversion=9.14.4.6
  71. Affected versionversion=9.14.4.7
  72. Affected versionversion=9.16.1
  73. Affected versionversion=9.16.1.28
  74. Affected versionversion=9.16.2
  75. Affected versionversion=9.16.2.11
  76. Affected versionversion=9.16.2.13
  77. Affected versionversion=9.16.2.14
  78. Affected versionversion=9.16.2.3
  79. Affected versionversion=9.16.2.7
  80. Affected versionversion=9.16.3
  81. Affected versionversion=9.16.3.14
  82. Affected versionversion=9.16.3.15
  83. Affected versionversion=9.16.3.19
  84. Affected versionversion=9.16.3.23
  85. Affected versionversion=9.16.3.3
  86. Affected versionversion=9.16.4
  87. Affected versionversion=9.16.4.14
  88. Affected versionversion=9.16.4.18
  89. Affected versionversion=9.16.4.19
  90. Affected versionversion=9.16.4.27
  91. Affected versionversion=9.16.4.38
  92. Affected versionversion=9.16.4.39
  93. Affected versionversion=9.16.4.42
  94. Affected versionversion=9.16.4.48
  95. Affected versionversion=9.16.4.55
  96. Affected versionversion=9.16.4.57
  97. Affected versionversion=9.16.4.61
  98. Affected versionversion=9.16.4.62
  99. Affected versionversion=9.16.4.67
  100. Affected versionversion=9.16.4.70
  101. Affected versionversion=9.16.4.71
  102. Affected versionversion=9.16.4.76
  103. Affected versionversion=9.16.4.82
  104. Affected versionversion=9.16.4.84
  105. Affected versionversion=9.16.4.9
  106. Affected versionversion=9.17.1
  107. Affected versionversion=9.17.1.10
  108. Affected versionversion=9.17.1.11
  109. Affected versionversion=9.17.1.13
  110. Affected versionversion=9.17.1.15
  111. Affected versionversion=9.17.1.20
  112. Affected versionversion=9.17.1.30
  113. Affected versionversion=9.17.1.33
  114. Affected versionversion=9.17.1.39
  115. Affected versionversion=9.17.1.45
  116. Affected versionversion=9.17.1.46
  117. Affected versionversion=9.17.1.7
  118. Affected versionversion=9.17.1.9
  119. Affected versionversion=9.18.1
  120. Affected versionversion=9.18.1.3
  121. Affected versionversion=9.18.2
  122. Affected versionversion=9.18.2.5
  123. Affected versionversion=9.18.2.7
  124. Affected versionversion=9.18.2.8
  125. Affected versionversion=9.18.3
  126. Affected versionversion=9.18.3.39
  127. Affected versionversion=9.18.3.46
  128. Affected versionversion=9.18.3.53
  129. Affected versionversion=9.18.3.55
  130. Affected versionversion=9.18.3.56
  131. Affected versionversion=9.18.4
  132. Affected versionversion=9.18.4.22
  133. Affected versionversion=9.18.4.24
  134. Affected versionversion=9.18.4.29
  135. Affected versionversion=9.18.4.34
  136. Affected versionversion=9.18.4.40
  137. Affected versionversion=9.18.4.47
  138. Affected versionversion=9.18.4.5
  139. Affected versionversion=9.18.4.50
  140. Affected versionversion=9.18.4.52
  141. Affected versionversion=9.18.4.53
  142. Affected versionversion=9.18.4.57
  143. Affected versionversion=9.18.4.66
  144. Affected versionversion=9.18.4.8
  145. Affected versionversion=9.19.1
  146. Affected versionversion=9.19.1.12
  147. Affected versionversion=9.19.1.18
  148. Affected versionversion=9.19.1.22
  149. Affected versionversion=9.19.1.24
  150. Affected versionversion=9.19.1.27
  151. Affected versionversion=9.19.1.28
  152. Affected versionversion=9.19.1.31
  153. Affected versionversion=9.19.1.37
  154. Affected versionversion=9.19.1.38
  155. Affected versionversion=9.19.1.42
  156. Affected versionversion=9.19.1.5
  157. Affected versionversion=9.19.1.9
  158. Affected versionversion=9.20.1
  159. Affected versionversion=9.20.1.5
  160. Affected versionversion=9.20.2
  161. Affected versionversion=9.20.2.10
  162. Affected versionversion=9.20.2.21
  163. Affected versionversion=9.20.2.22
  164. Affected versionversion=9.20.3
  165. Affected versionversion=9.20.3.10
  166. Affected versionversion=9.20.3.13
  167. Affected versionversion=9.20.3.16
  168. Affected versionversion=9.20.3.20
  169. Affected versionversion=9.20.3.4
  170. Affected versionversion=9.20.3.7
  171. Affected versionversion=9.20.3.9
  172. Affected versionversion=9.20.4
  173. Affected versionversion=9.20.4.7
  174. Affected versionversion=9.22.1.1
  175. Affected versionversion=9.22.1.2
  176. Affected versionversion=9.22.1.3
  177. Affected versionversion=9.22.1.6
  178. Affected versionversion=9.22.2
  179. Affected versionversion=9.22.2.13
  180. Affected versionversion=9.22.2.4
  181. Affected versionversion=9.22.2.9
  182. Affected versionversion=9.23.1
  183. Affected versionversion=9.23.1.13
  184. Affected versionversion=9.23.1.3
  185. Affected versionversion=9.23.1.7
  186. Affected versionversion=9.8.1
  187. Affected versionversion=9.8.1.5
  188. Affected versionversion=9.8.1.7
  189. Affected versionversion=9.8.2
  190. Affected versionversion=9.8.2.14
  191. Affected versionversion=9.8.2.15
  192. Affected versionversion=9.8.2.17
  193. Affected versionversion=9.8.2.20
  194. Affected versionversion=9.8.2.24
  195. Affected versionversion=9.8.2.26
  196. Affected versionversion=9.8.2.28
  197. Affected versionversion=9.8.2.33
  198. Affected versionversion=9.8.2.35
  199. Affected versionversion=9.8.2.38
  200. Affected versionversion=9.8.2.45
  201. Affected versionversion=9.8.2.8
  202. Affected versionversion=9.8.3
  203. Affected versionversion=9.8.3.11
  204. Affected versionversion=9.8.3.14
  205. Affected versionversion=9.8.3.16
  206. Affected versionversion=9.8.3.18
  207. Affected versionversion=9.8.3.21
  208. Affected versionversion=9.8.3.26
  209. Affected versionversion=9.8.3.29
  210. Affected versionversion=9.8.3.8
  211. Affected versionversion=9.8.4
  212. Affected versionversion=9.8.4.10
  213. Affected versionversion=9.8.4.12
  214. Affected versionversion=9.8.4.15
  215. Affected versionversion=9.8.4.17
  216. Affected versionversion=9.8.4.20
  217. Affected versionversion=9.8.4.22
  218. Affected versionversion=9.8.4.25
  219. Affected versionversion=9.8.4.26
  220. Affected versionversion=9.8.4.29
  221. Affected versionversion=9.8.4.3
  222. Affected versionversion=9.8.4.32
  223. Affected versionversion=9.8.4.33
  224. Affected versionversion=9.8.4.34
  225. Affected versionversion=9.8.4.35
  226. Affected versionversion=9.8.4.39
  227. Affected versionversion=9.8.4.40
  228. Affected versionversion=9.8.4.41
  229. Affected versionversion=9.8.4.43
  230. Affected versionversion=9.8.4.44
  231. Affected versionversion=9.8.4.45
  232. Affected versionversion=9.8.4.46
  233. Affected versionversion=9.8.4.48
  234. Affected versionversion=9.8.4.7
  235. Affected versionversion=9.8.4.8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ClamAV · Cisco Adaptive Security Appliance (ASA) Softwareversion=9.12.1; version=9.12.1.2; version=9.12.1.3; version=9.12.2; version=9.12.2.1; version=9.12.2.4; version=9.12.2.5; version=9.12.2.9; version=9.12.3; version=9.12.3.12; version=9.12.3.2; version=9.12.3.7; version=9.12.3.9; version=9.12.4; version=9.12.4.10; version=9.12.4.13; version=9.12.4.18; version=9.12.4.2; version=9.12.4.24; version=9.12.4.26; version=9.12.4.29; version=9.12.4.30; version=9.12.4.35; version=9.12.4.37; version=9.12.4.38; version=9.12.4.39; version=9.12.4.4; version=9.12.4.40; version=9.12.4.41; version=9.12.4.47; version=9.12.4.48; version=9.12.4.50; version=9.12.4.52; version=9.12.4.54; version=9.12.4.55; version=9.12.4.56; version=9.12.4.58; version=9.12.4.62; version=9.12.4.65; version=9.12.4.67; version=9.12.4.7; version=9.12.4.8; version=9.14.1; version=9.14.1.10; version=9.14.1.15; version=9.14.1.19; version=9.14.1.30; version=9.14.1.6; version=9.14.2; version=9.14.2.13; version=9.14.2.15; version=9.14.2.4; version=9.14.2.8; version=9.14.3; version=9.14.3.1; version=9.14.3.11; version=9.14.3.13; version=9.14.3.15; version=9.14.3.18; version=9.14.3.9; version=9.14.4; version=9.14.4.12; version=9.14.4.13; version=9.14.4.14; version=9.14.4.15; version=9.14.4.17; version=9.14.4.22; version=9.14.4.23; version=9.14.4.24; version=9.14.4.6; version=9.14.4.7; version=9.16.1; version=9.16.1.28; version=9.16.2; version=9.16.2.11; version=9.16.2.13; version=9.16.2.14; version=9.16.2.3; version=9.16.2.7; version=9.16.3; version=9.16.3.14; version=9.16.3.15; version=9.16.3.19; version=9.16.3.23; version=9.16.3.3; version=9.16.4; version=9.16.4.14; version=9.16.4.18; version=9.16.4.19; version=9.16.4.27; version=9.16.4.38; version=9.16.4.39; version=9.16.4.42; version=9.16.4.48; version=9.16.4.55; version=9.16.4.57; version=9.16.4.61; version=9.16.4.62; version=9.16.4.67; version=9.16.4.70; version=9.16.4.71; version=9.16.4.76; version=9.16.4.82; version=9.16.4.84; version=9.16.4.9; version=9.17.1; version=9.17.1.10; version=9.17.1.11; version=9.17.1.13; version=9.17.1.15; version=9.17.1.20; version=9.17.1.30; version=9.17.1.33; version=9.17.1.39; version=9.17.1.45; version=9.17.1.46; version=9.17.1.7; version=9.17.1.9; version=9.18.1; version=9.18.1.3; version=9.18.2; version=9.18.2.5; version=9.18.2.7; version=9.18.2.8; version=9.18.3; version=9.18.3.39; version=9.18.3.46; version=9.18.3.53; version=9.18.3.55; version=9.18.3.56; version=9.18.4; version=9.18.4.22; version=9.18.4.24; version=9.18.4.29; version=9.18.4.34; version=9.18.4.40; version=9.18.4.47; version=9.18.4.5; version=9.18.4.50; version=9.18.4.52; version=9.18.4.53; version=9.18.4.57; version=9.18.4.66; version=9.18.4.8; version=9.19.1; version=9.19.1.12; version=9.19.1.18; version=9.19.1.22; version=9.19.1.24; version=9.19.1.27; version=9.19.1.28; version=9.19.1.31; version=9.19.1.37; version=9.19.1.38; version=9.19.1.42; version=9.19.1.5; version=9.19.1.9; version=9.20.1; version=9.20.1.5; version=9.20.2; version=9.20.2.10; version=9.20.2.21; version=9.20.2.22; version=9.20.3; version=9.20.3.10; version=9.20.3.13; version=9.20.3.16; version=9.20.3.20; version=9.20.3.4; version=9.20.3.7; version=9.20.3.9; version=9.20.4; version=9.20.4.7; version=9.22.1.1; version=9.22.1.2; version=9.22.1.3; version=9.22.1.6; version=9.22.2; version=9.22.2.13; version=9.22.2.4; version=9.22.2.9; version=9.23.1; version=9.23.1.13; version=9.23.1.3; version=9.23.1.7; version=9.8.1; version=9.8.1.5; version=9.8.1.7; version=9.8.2; version=9.8.2.14; version=9.8.2.15; version=9.8.2.17; version=9.8.2.20; version=9.8.2.24; version=9.8.2.26; version=9.8.2.28; version=9.8.2.33; version=9.8.2.35; version=9.8.2.38; version=9.8.2.45; version=9.8.2.8; version=9.8.3; version=9.8.3.11; version=9.8.3.14; version=9.8.3.16; version=9.8.3.18; version=9.8.3.21; version=9.8.3.26; version=9.8.3.29; version=9.8.3.8; version=9.8.4; version=9.8.4.10; version=9.8.4.12; version=9.8.4.15; version=9.8.4.17; version=9.8.4.20; version=9.8.4.22; version=9.8.4.25; version=9.8.4.26; version=9.8.4.29; version=9.8.4.3; version=9.8.4.32; version=9.8.4.33; version=9.8.4.34; version=9.8.4.35; version=9.8.4.39; version=9.8.4.40; version=9.8.4.41; version=9.8.4.43; version=9.8.4.44; version=9.8.4.45; version=9.8.4.46; version=9.8.4.48; version=9.8.4.7; version=9.8.4.8
ClamAV · Cisco Firepower Threat Defenseversion=6.2.3; version=6.2.3.1; version=6.2.3.10; version=6.2.3.11; version=6.2.3.12; version=6.2.3.13; version=6.2.3.14; version=6.2.3.15; version=6.2.3.16; version=6.2.3.17; version=6.2.3.18; version=6.2.3.2; version=6.2.3.3; version=6.2.3.4; version=6.2.3.5; version=6.2.3.6; version=6.2.3.7; version=6.2.3.8; version=6.2.3.9; version=6.4.0; version=6.4.0.1; version=6.4.0.10; version=6.4.0.11; version=6.4.0.12; version=6.4.0.13; version=6.4.0.14; version=6.4.0.15; version=6.4.0.16; version=6.4.0.17; version=6.4.0.18; version=6.4.0.2; version=6.4.0.3; version=6.4.0.4; version=6.4.0.5; version=6.4.0.6; version=6.4.0.7; version=6.4.0.8; version=6.4.0.9; version=6.6.0; version=6.6.0.1; version=6.6.1; version=6.6.3; version=6.6.4; version=6.6.5; version=6.6.5.1; version=6.6.5.2; version=6.6.7; version=6.6.7.1; version=6.6.7.2; version=7.0.0; version=7.0.0.1; version=7.0.1; version=7.0.1.1; version=7.0.2; version=7.0.2.1; version=7.0.3; version=7.0.4; version=7.0.5; version=7.0.6; version=7.0.6.1; version=7.0.6.2; version=7.0.6.3; version=7.0.7; version=7.0.8; version=7.1.0; version=7.1.0.1; version=7.1.0.2; version=7.1.0.3; version=7.2.0; version=7.2.0.1; version=7.2.1; version=7.2.10; version=7.2.2; version=7.2.3; version=7.2.4; version=7.2.4.1; version=7.2.5; version=7.2.5.1; version=7.2.5.2; version=7.2.6; version=7.2.7; version=7.2.8; version=7.2.8.1; version=7.2.9; version=7.3.0; version=7.3.1; version=7.3.1.1; version=7.3.1.2; version=7.4.0; version=7.4.1; version=7.4.1.1; version=7.4.2; version=7.4.2.1; version=7.4.2.2; version=7.4.2.3; version=7.6.0; version=7.6.1; version=7.6.2; version=7.7.0; version=7.7.10

Published CVSS scores

6.5Cisco Systems, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:X/RL:X/RC:X
8.6NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/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 IPsShadowserver observations through Sep 16, 2026. Gaps indicate unavailable data.
Sep 10, 2026Sep 16, 2026
View daily counts
Reporting dayUnique IPs
Sep 10, 20263
Sep 11, 2026Unavailable
Sep 12, 2026Unavailable
Sep 13, 2026Unavailable
Sep 14, 2026Unavailable
Sep 15, 20261
Sep 16, 2026Unavailable
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationReported
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1190Exploit Public-Facing Application

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

Check the software in your environment

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