CVE-2025-47403

Transient service interruption via malformed Fast Transition frame

Published May 4, 2026 · Updated May 4, 2026

Buffer over-read in Qualcomm Snapdragon WLAN firmware allows physically proximate attackers to interrupt service during wireless roaming. The firmware reads beyond the valid header while parsing a malformed Fast Transition response frame. The frame must be received during an adjacent wireless roaming exchange; successful exploitation causes only a transient service interruption.

CVSS severity6.5
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer over-read in Qualcomm Snapdragon WLAN firmware allows physically proximate attackers to interrupt service during wireless roaming. The firmware reads beyond the valid header while parsing a malformed Fast Transition response frame. The frame must be received during an adjacent wireless roaming exchange; successful exploitation causes only a transient service interruption.

The record

CVE
CVE-2025-47403
Published
May 4, 2026
Updated
May 4, 2026
Vendor
Qualcomm
Product
Snapdragon
Classifications
CWE-125, CWE-126, T1499
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 4, 2026CVE publishedPublication date reported by the CVE source.
  2. May 4, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=AR8035
  2. Affected versionversion=Cologne
  3. Affected versionversion=CQ7790
  4. Affected versionversion=CQ8725S
  5. Affected versionversion=CQ8750M
  6. Affected versionversion=CSR8811
  7. Affected versionversion=FastConnect 6200
  8. Affected versionversion=FastConnect 6700
  9. Affected versionversion=FastConnect 6900
  10. Affected versionversion=FastConnect 7800
  11. Affected versionversion=FWA Gen 3 Ultra Platform
  12. Affected versionversion=FWA Gen 5 Elite Platform
  13. Affected versionversion=G2 Gen 1
  14. Affected versionversion=G3x Gen 2
  15. Affected versionversion=Immersive Home 214 Platform
  16. Affected versionversion=Immersive Home 216 Platform
  17. Affected versionversion=Immersive Home 316 Platform
  18. Affected versionversion=Immersive Home 318 Platform
  19. Affected versionversion=Immersive Home 3210 Platform
  20. Affected versionversion=Immersive Home 326 Platform
  21. Affected versionversion=IPQ5010
  22. Affected versionversion=IPQ5028
  23. Affected versionversion=IPQ5300
  24. Affected versionversion=IPQ5302
  25. Affected versionversion=IPQ5312
  26. Affected versionversion=IPQ5332
  27. Affected versionversion=IPQ6000
  28. Affected versionversion=IPQ6010
  29. Affected versionversion=IPQ6018
  30. Affected versionversion=IPQ8076
  31. Affected versionversion=IPQ8078
  32. Affected versionversion=IPQ9008
  33. Affected versionversion=IPQ9554
  34. Affected versionversion=IPQ9570
  35. Affected versionversion=IPQ9574
  36. Affected versionversion=IQX5121
  37. Affected versionversion=IQX7181
  38. Affected versionversion=Kobuk
  39. Affected versionversion=LeMansAU
  40. Affected versionversion=LeMans_AU_LGIT
  41. Affected versionversion=Marina
  42. Affected versionversion=Milos
  43. Affected versionversion=Milos_IOT
  44. Affected versionversion=Molokai
  45. Affected versionversion=Netrani
  46. Affected versionversion=Networking Pro 1200 Platform
  47. Affected versionversion=Networking Pro 1210 Platform
  48. Affected versionversion=Networking Pro 1610 Platform
  49. Affected versionversion=Networking Pro 400 Platform
  50. Affected versionversion=Networking Pro 600 Platform
  51. Affected versionversion=Networking Pro 610 Platform
  52. Affected versionversion=Networking Pro 800 Platform
  53. Affected versionversion=Networking Pro 810 Platform
  54. Affected versionversion=NPro A8 Elite Platform
  55. Affected versionversion=Orne
  56. Affected versionversion=Palawan25
  57. Affected versionversion=Pandeiro
  58. Affected versionversion=QAM8255P
  59. Affected versionversion=QAM8397P
  60. Affected versionversion=QAMSRV1H
  61. Affected versionversion=QAMSRV1M
  62. Affected versionversion=QCA0000
  63. Affected versionversion=QCA4024
  64. Affected versionversion=QCA6174A
  65. Affected versionversion=QCA6391
  66. Affected versionversion=QCA6554A
  67. Affected versionversion=QCA6564AU
  68. Affected versionversion=QCA6574
  69. Affected versionversion=QCA6574A
  70. Affected versionversion=QCA6574AU
  71. Affected versionversion=QCA6584AU
  72. Affected versionversion=QCA6595
  73. Affected versionversion=QCA6595AU
  74. Affected versionversion=QCA6678AQ
  75. Affected versionversion=QCA6688AQ
  76. Affected versionversion=QCA6696
  77. Affected versionversion=QCA6698AQ
  78. Affected versionversion=QCA6777AQ
  79. Affected versionversion=QCA6787AQ
  80. Affected versionversion=QCA6797AQ
  81. Affected versionversion=QCA8072
  82. Affected versionversion=QCA8075
  83. Affected versionversion=QCA8080
  84. Affected versionversion=QCA8081
  85. Affected versionversion=QCA8082
  86. Affected versionversion=QCA8084
  87. Affected versionversion=QCA8085
  88. Affected versionversion=QCA8337
  89. Affected versionversion=QCA8386
  90. Affected versionversion=QCA8695AU
  91. Affected versionversion=QCA9888
  92. Affected versionversion=QCA9889
  93. Affected versionversion=QCC2073
  94. Affected versionversion=QCC2076
  95. Affected versionversion=QCC710
  96. Affected versionversion=QCF8000
  97. Affected versionversion=QCF8001
  98. Affected versionversion=QCM4490
  99. Affected versionversion=QCM5430
  100. Affected versionversion=QCM6490
  101. Affected versionversion=QCN5022
  102. Affected versionversion=QCN5024
  103. Affected versionversion=QCN5052
  104. Affected versionversion=QCN5054
  105. Affected versionversion=QCN5122
  106. Affected versionversion=QCN5124
  107. Affected versionversion=QCN5152
  108. Affected versionversion=QCN5154
  109. Affected versionversion=QCN5164
  110. Affected versionversion=QCN6023
  111. Affected versionversion=QCN6024
  112. Affected versionversion=QCN6122
  113. Affected versionversion=QCN6132
  114. Affected versionversion=QCN6224
  115. Affected versionversion=QCN6274
  116. Affected versionversion=QCN6402
  117. Affected versionversion=QCN6412
  118. Affected versionversion=QCN6422
  119. Affected versionversion=QCN6432
  120. Affected versionversion=QCN9000
  121. Affected versionversion=QCN9001
  122. Affected versionversion=QCN9002
  123. Affected versionversion=QCN9003
  124. Affected versionversion=QCN9011
  125. Affected versionversion=QCN9012
  126. Affected versionversion=QCN9022
  127. Affected versionversion=QCN9024
  128. Affected versionversion=QCN9070
  129. Affected versionversion=QCN9100
  130. Affected versionversion=QCN9274
  131. Affected versionversion=QCS4490
  132. Affected versionversion=QCS6690
  133. Affected versionversion=QCS8550
  134. Affected versionversion=QFW7114
  135. Affected versionversion=QFW7124
  136. Affected versionversion=QLN1083BD
  137. Affected versionversion=QLN1086BD
  138. Affected versionversion=QMB415
  139. Affected versionversion=QMB715
  140. Affected versionversion=QMP1000
  141. Affected versionversion=QMP2001
  142. Affected versionversion=QPA1083BD
  143. Affected versionversion=QPA1086BD
  144. Affected versionversion=Qualcomm Video Collaboration VC3 Platform
  145. Affected versionversion=QXM1083
  146. Affected versionversion=QXM1086
  147. Affected versionversion=QXM1093
  148. Affected versionversion=QXM1094
  149. Affected versionversion=QXM1095
  150. Affected versionversion=QXM1096
  151. Affected versionversion=SA7255P
  152. Affected versionversion=SA7775P
  153. Affected versionversion=SA8255P
  154. Affected versionversion=SA8620P
  155. Affected versionversion=SA8770P
  156. Affected versionversion=SA9000P
  157. Affected versionversion=SAR1165P
  158. Affected versionversion=SAR2130P
  159. Affected versionversion=SC8380XP
  160. Affected versionversion=SD 8 Gen1 5G
  161. Affected versionversion=SDX61
  162. Affected versionversion=SDX65M
  163. Affected versionversion=SDX81
  164. Affected versionversion=SM6450P
  165. Affected versionversion=SM6475P
  166. Affected versionversion=SM6475Q
  167. Affected versionversion=SM6650P
  168. Affected versionversion=SM6850
  169. Affected versionversion=SM7425
  170. Affected versionversion=SM7435
  171. Affected versionversion=SM7435P
  172. Affected versionversion=SM7525
  173. Affected versionversion=SM7550
  174. Affected versionversion=SM7550P
  175. Affected versionversion=SM7635P
  176. Affected versionversion=SM7675
  177. Affected versionversion=SM7675P
  178. Affected versionversion=SM8425
  179. Affected versionversion=SM8475P
  180. Affected versionversion=SM8550P
  181. Affected versionversion=SM8635
  182. Affected versionversion=SM8635P
  183. Affected versionversion=SM8650Q
  184. Affected versionversion=SM8735P
  185. Affected versionversion=SM8750P
  186. Affected versionversion=SM8845P
  187. Affected versionversion=Snapdragon 4 Gen 2 Mobile Platform
  188. Affected versionversion=Snapdragon 6 Gen 1 Mobile Platform
  189. Affected versionversion=Snapdragon 6 Gen 3 Mobile Platform
  190. Affected versionversion=Snapdragon 6 Gen 4 Mobile Platform
  191. Affected versionversion=Snapdragon 7 Gen 1 Mobile Platform
  192. Affected versionversion=Snapdragon 7+ Gen 2 Mobile Platform
  193. Affected versionversion=Snapdragon 7 Gen 4 Mobile Platform
  194. Affected versionversion=Snapdragon 7s Gen 3 Mobile Platform
  195. Affected versionversion=Snapdragon 8 Elite
  196. Affected versionversion=Snapdragon 8 Elite Gen 5
  197. Affected versionversion=Snapdragon 8 Gen 1 Mobile Platform
  198. Affected versionversion=Snapdragon 8+ Gen 1 Mobile Platform
  199. Affected versionversion=Snapdragon 8 Gen 2 Mobile Platform
  200. Affected versionversion=Snapdragon 8+ Gen 2 Mobile Platform
  201. Affected versionversion=Snapdragon 8 Gen 3 Mobile Platform
  202. Affected versionversion=Snapdragon AR1 Gen 1 Platform
  203. Affected versionversion=Snapdragon AR1+ Gen 1 Platform
  204. Affected versionversion=Snapdragon Auto 5G Modem-RF Gen 2
  205. Affected versionversion=Snapdragon X62 5G Modem-RF System
  206. Affected versionversion=Snapdragon X65 5G Modem-RF System
  207. Affected versionversion=Snapdragon X72 5G Modem-RF System
  208. Affected versionversion=Snapdragon X75 5G Modem-RF System
  209. Affected versionversion=SRV1H
  210. Affected versionversion=SRV1M
  211. Affected versionversion=SXR2230P
  212. Affected versionversion=SXR2250P
  213. Affected versionversion=SXR2330P
  214. Affected versionversion=SXR2350P
  215. Affected versionversion=Trestles
  216. Affected versionversion=WCD9340
  217. Affected versionversion=WCD9370
  218. Affected versionversion=WCD9371
  219. Affected versionversion=WCD9375
  220. Affected versionversion=WCD9378
  221. Affected versionversion=WCD9378C
  222. Affected versionversion=WCD9380
  223. Affected versionversion=WCD9385
  224. Affected versionversion=WCD9390
  225. Affected versionversion=WCD9395
  226. Affected versionversion=WCN3950
  227. Affected versionversion=WCN3988
  228. Affected versionversion=WCN6450
  229. Affected versionversion=WCN6650
  230. Affected versionversion=WCN6755
  231. Affected versionversion=WCN7760
  232. Affected versionversion=WCN7860
  233. Affected versionversion=WCN7861
  234. Affected versionversion=WCN7880
  235. Affected versionversion=WCN7881
  236. Affected versionversion=WSA8810
  237. Affected versionversion=WSA8815
  238. Affected versionversion=WSA8830
  239. Affected versionversion=WSA8832
  240. Affected versionversion=WSA8835
  241. Affected versionversion=WSA8840
  242. Affected versionversion=WSA8845
  243. Affected versionversion=WSA8845H
  244. Affected versionversion=WSA8850
  245. Affected versionversion=WSA8850W
  246. Affected versionversion=WSA8855C
  247. Affected versionversion=X1E80100
  248. Affected versionversion=X2000077
  249. Affected versionversion=X2000086
  250. Affected versionversion=X2000090
  251. Affected versionversion=X2000092
  252. Affected versionversion=X2000094
  253. Affected versionversion=XG101002
  254. Affected versionversion=XG101032
  255. Affected versionversion=XG101039
  256. Affected versionversion=XRV7209
  257. Affected versionversion=XRV9209

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Qualcomm · Snapdragonversion=AR8035; version=Cologne; version=CQ7790; version=CQ8725S; version=CQ8750M; version=CSR8811; version=FastConnect 6200; version=FastConnect 6700; version=FastConnect 6900; version=FastConnect 7800; version=FWA Gen 3 Ultra Platform; version=FWA Gen 5 Elite Platform; version=G2 Gen 1; version=G3x Gen 2; version=Immersive Home 214 Platform; version=Immersive Home 216 Platform; version=Immersive Home 316 Platform; version=Immersive Home 318 Platform; version=Immersive Home 3210 Platform; version=Immersive Home 326 Platform; version=IPQ5010; version=IPQ5028; version=IPQ5300; version=IPQ5302; version=IPQ5312; version=IPQ5332; version=IPQ6000; version=IPQ6010; version=IPQ6018; version=IPQ8076; version=IPQ8078; version=IPQ9008; version=IPQ9554; version=IPQ9570; version=IPQ9574; version=IQX5121; version=IQX7181; version=Kobuk; version=LeMansAU; version=LeMans_AU_LGIT; version=Marina; version=Milos; version=Milos_IOT; version=Molokai; version=Netrani; version=Networking Pro 1200 Platform; version=Networking Pro 1210 Platform; version=Networking Pro 1610 Platform; version=Networking Pro 400 Platform; version=Networking Pro 600 Platform; version=Networking Pro 610 Platform; version=Networking Pro 800 Platform; version=Networking Pro 810 Platform; version=NPro A8 Elite Platform; version=Orne; version=Palawan25; version=Pandeiro; version=QAM8255P; version=QAM8397P; version=QAMSRV1H; version=QAMSRV1M; version=QCA0000; version=QCA4024; version=QCA6174A; version=QCA6391; version=QCA6554A; version=QCA6564AU; version=QCA6574; version=QCA6574A; version=QCA6574AU; version=QCA6584AU; version=QCA6595; version=QCA6595AU; version=QCA6678AQ; version=QCA6688AQ; version=QCA6696; version=QCA6698AQ; version=QCA6777AQ; version=QCA6787AQ; version=QCA6797AQ; version=QCA8072; version=QCA8075; version=QCA8080; version=QCA8081; version=QCA8082; version=QCA8084; version=QCA8085; version=QCA8337; version=QCA8386; version=QCA8695AU; version=QCA9888; version=QCA9889; version=QCC2073; version=QCC2076; version=QCC710; version=QCF8000; version=QCF8001; version=QCM4490; version=QCM5430; version=QCM6490; version=QCN5022; version=QCN5024; version=QCN5052; version=QCN5054; version=QCN5122; version=QCN5124; version=QCN5152; version=QCN5154; version=QCN5164; version=QCN6023; version=QCN6024; version=QCN6122; version=QCN6132; version=QCN6224; version=QCN6274; version=QCN6402; version=QCN6412; version=QCN6422; version=QCN6432; version=QCN9000; version=QCN9001; version=QCN9002; version=QCN9003; version=QCN9011; version=QCN9012; version=QCN9022; version=QCN9024; version=QCN9070; version=QCN9100; version=QCN9274; version=QCS4490; version=QCS6690; version=QCS8550; version=QFW7114; version=QFW7124; version=QLN1083BD; version=QLN1086BD; version=QMB415; version=QMB715; version=QMP1000; version=QMP2001; version=QPA1083BD; version=QPA1086BD; version=Qualcomm Video Collaboration VC3 Platform; version=QXM1083; version=QXM1086; version=QXM1093; version=QXM1094; version=QXM1095; version=QXM1096; version=SA7255P; version=SA7775P; version=SA8255P; version=SA8620P; version=SA8770P; version=SA9000P; version=SAR1165P; version=SAR2130P; version=SC8380XP; version=SD 8 Gen1 5G; version=SDX61; version=SDX65M; version=SDX81; version=SM6450P; version=SM6475P; version=SM6475Q; version=SM6650P; version=SM6850; version=SM7425; version=SM7435; version=SM7435P; version=SM7525; version=SM7550; version=SM7550P; version=SM7635P; version=SM7675; version=SM7675P; version=SM8425; version=SM8475P; version=SM8550P; version=SM8635; version=SM8635P; version=SM8650Q; version=SM8735P; version=SM8750P; version=SM8845P; version=Snapdragon 4 Gen 2 Mobile Platform; version=Snapdragon 6 Gen 1 Mobile Platform; version=Snapdragon 6 Gen 3 Mobile Platform; version=Snapdragon 6 Gen 4 Mobile Platform; version=Snapdragon 7 Gen 1 Mobile Platform; version=Snapdragon 7+ Gen 2 Mobile Platform; version=Snapdragon 7 Gen 4 Mobile Platform; version=Snapdragon 7s Gen 3 Mobile Platform; version=Snapdragon 8 Elite; version=Snapdragon 8 Elite Gen 5; version=Snapdragon 8 Gen 1 Mobile Platform; version=Snapdragon 8+ Gen 1 Mobile Platform; version=Snapdragon 8 Gen 2 Mobile Platform; version=Snapdragon 8+ Gen 2 Mobile Platform; version=Snapdragon 8 Gen 3 Mobile Platform; version=Snapdragon AR1 Gen 1 Platform; version=Snapdragon AR1+ Gen 1 Platform; version=Snapdragon Auto 5G Modem-RF Gen 2; version=Snapdragon X62 5G Modem-RF System; version=Snapdragon X65 5G Modem-RF System; version=Snapdragon X72 5G Modem-RF System; version=Snapdragon X75 5G Modem-RF System; version=SRV1H; version=SRV1M; version=SXR2230P; version=SXR2250P; version=SXR2330P; version=SXR2350P; version=Trestles; version=WCD9340; version=WCD9370; version=WCD9371; version=WCD9375; version=WCD9378; version=WCD9378C; version=WCD9380; version=WCD9385; version=WCD9390; version=WCD9395; version=WCN3950; version=WCN3988; version=WCN6450; version=WCN6650; version=WCN6755; version=WCN7760; version=WCN7860; version=WCN7861; version=WCN7880; version=WCN7881; version=WSA8810; version=WSA8815; version=WSA8830; version=WSA8832; version=WSA8835; version=WSA8840; version=WSA8845; version=WSA8845H; version=WSA8850; version=WSA8850W; version=WSA8855C; version=X1E80100; version=X2000077; version=X2000086; version=X2000090; version=X2000092; version=X2000094; version=XG101002; version=XG101032; version=XG101039; version=XRV7209; version=XRV9209

Published CVSS scores

7.5NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
6.5Qualcomm, Inc.CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/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.

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No observations available

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

Weakness, pattern, technique

CWE-125Out-of-bounds Read
CWE-126Buffer Over-read
T1499Endpoint Denial of Service

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.

Technologies

Your stack

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Your stack

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