CVE-2025-21429Network attack vector

Service interruption via undersized TSInfo structure

Published Apr 7, 2025 · Updated Feb 26, 2026

Buffer over-read in Qualcomm Snapdragon WLAN host firmware allows remote attackers to interrupt service through a crafted ADD TS request. The WLAN host defines the TSInfo field with fewer than the four bytes required by the specification, so request processing reads beyond the structure boundary. Exploitation requires network access during station association with an access point and affects availability without reported data disclosure or modification.

CVSS severity7.5
High
EPSS probability0.26%
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 host firmware allows remote attackers to interrupt service through a crafted ADD TS request. The WLAN host defines the TSInfo field with fewer than the four bytes required by the specification, so request processing reads beyond the structure boundary. Exploitation requires network access during station association with an access point and affects availability without reported data disclosure or modification.

The record

CVE
CVE-2025-21429
Published
Apr 7, 2025
Updated
Feb 26, 2026
Vendor
Qualcomm
Product
Snapdragon
Classifications
CWE-126, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 7, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 26, 2026Record 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=9206 LTE Modem
  2. Affected versionversion=APQ8017
  3. Affected versionversion=APQ8064AU
  4. Affected versionversion=AQT1000
  5. Affected versionversion=AR8035
  6. Affected versionversion=CSRA6620
  7. Affected versionversion=CSRA6640
  8. Affected versionversion=CSRB31024
  9. Affected versionversion=C-V2X 9150
  10. Affected versionversion=FastConnect 6200
  11. Affected versionversion=FastConnect 6700
  12. Affected versionversion=FastConnect 6800
  13. Affected versionversion=FastConnect 6900
  14. Affected versionversion=FastConnect 7800
  15. Affected versionversion=MDM9250
  16. Affected versionversion=MDM9628
  17. Affected versionversion=MDM9640
  18. Affected versionversion=MDM9650
  19. Affected versionversion=MSM8996AU
  20. Affected versionversion=QAM8255P
  21. Affected versionversion=QAM8650P
  22. Affected versionversion=QAM8775P
  23. Affected versionversion=QCA6174A
  24. Affected versionversion=QCA6175A
  25. Affected versionversion=QCA6391
  26. Affected versionversion=QCA6420
  27. Affected versionversion=QCA6421
  28. Affected versionversion=QCA6426
  29. Affected versionversion=QCA6430
  30. Affected versionversion=QCA6431
  31. Affected versionversion=QCA6436
  32. Affected versionversion=QCA6554A
  33. Affected versionversion=QCA6564
  34. Affected versionversion=QCA6564A
  35. Affected versionversion=QCA6564AU
  36. Affected versionversion=QCA6574
  37. Affected versionversion=QCA6574A
  38. Affected versionversion=QCA6574AU
  39. Affected versionversion=QCA6584AU
  40. Affected versionversion=QCA6595
  41. Affected versionversion=QCA6595AU
  42. Affected versionversion=QCA6678AQ
  43. Affected versionversion=QCA6696
  44. Affected versionversion=QCA6698AQ
  45. Affected versionversion=QCA6777AQ
  46. Affected versionversion=QCA6787AQ
  47. Affected versionversion=QCA6797AQ
  48. Affected versionversion=QCA8081
  49. Affected versionversion=QCA8337
  50. Affected versionversion=QCA9367
  51. Affected versionversion=QCA9377
  52. Affected versionversion=QCC2073
  53. Affected versionversion=QCC2076
  54. Affected versionversion=QCM2290
  55. Affected versionversion=QCM4290
  56. Affected versionversion=QCM5430
  57. Affected versionversion=QCM6125
  58. Affected versionversion=QCM6490
  59. Affected versionversion=QCN6024
  60. Affected versionversion=QCN9024
  61. Affected versionversion=QCN9074
  62. Affected versionversion=QCS2290
  63. Affected versionversion=QCS410
  64. Affected versionversion=QCS4290
  65. Affected versionversion=QCS5430
  66. Affected versionversion=QCS610
  67. Affected versionversion=QCS6125
  68. Affected versionversion=QCS6490
  69. Affected versionversion=Qualcomm 205 Mobile Platform
  70. Affected versionversion=Qualcomm Video Collaboration VC1 Platform
  71. Affected versionversion=Qualcomm Video Collaboration VC3 Platform
  72. Affected versionversion=SA2150P
  73. Affected versionversion=SA4150P
  74. Affected versionversion=SA4155P
  75. Affected versionversion=SA6145P
  76. Affected versionversion=SA6150P
  77. Affected versionversion=SA6155
  78. Affected versionversion=SA6155P
  79. Affected versionversion=SA8145P
  80. Affected versionversion=SA8150P
  81. Affected versionversion=SA8155
  82. Affected versionversion=SA8155P
  83. Affected versionversion=SA8195P
  84. Affected versionversion=SA8530P
  85. Affected versionversion=SA8540P
  86. Affected versionversion=SA9000P
  87. Affected versionversion=SD626
  88. Affected versionversion=SD660
  89. Affected versionversion=SD670
  90. Affected versionversion=SD730
  91. Affected versionversion=SD855
  92. Affected versionversion=SD865 5G
  93. Affected versionversion=SDM429W
  94. Affected versionversion=SDX55
  95. Affected versionversion=SDX61
  96. Affected versionversion=SM4125
  97. Affected versionversion=SM6250
  98. Affected versionversion=SM6370
  99. Affected versionversion=Smart Audio 200 Platform
  100. Affected versionversion=Smart Audio 400 Platform
  101. Affected versionversion=Smart Display 200 Platform (APQ5053-AA)
  102. Affected versionversion=Snapdragon 1200 Wearable Platform
  103. Affected versionversion=Snapdragon 210 Processor
  104. Affected versionversion=Snapdragon 212 Mobile Platform
  105. Affected versionversion=Snapdragon 429 Mobile Platform
  106. Affected versionversion=Snapdragon 460 Mobile Platform
  107. Affected versionversion=Snapdragon 480 5G Mobile Platform
  108. Affected versionversion=Snapdragon 480+ 5G Mobile Platform (SM4350-AC)
  109. Affected versionversion=Snapdragon 4 Gen 1 Mobile Platform
  110. Affected versionversion=Snapdragon 625 Mobile Platform
  111. Affected versionversion=Snapdragon 626 Mobile Platform
  112. Affected versionversion=Snapdragon 660 Mobile Platform
  113. Affected versionversion=Snapdragon 662 Mobile Platform
  114. Affected versionversion=Snapdragon 670 Mobile Platform
  115. Affected versionversion=Snapdragon 675 Mobile Platform
  116. Affected versionversion=Snapdragon 678 Mobile Platform (SM6150-AC)
  117. Affected versionversion=Snapdragon 680 4G Mobile Platform
  118. Affected versionversion=Snapdragon 685 4G Mobile Platform (SM6225-AD)
  119. Affected versionversion=Snapdragon 695 5G Mobile Platform
  120. Affected versionversion=Snapdragon 710 Mobile Platform
  121. Affected versionversion=Snapdragon 720G Mobile Platform
  122. Affected versionversion=Snapdragon 730G Mobile Platform (SM7150-AB)
  123. Affected versionversion=Snapdragon 730 Mobile Platform (SM7150-AA)
  124. Affected versionversion=Snapdragon 732G Mobile Platform (SM7150-AC)
  125. Affected versionversion=Snapdragon 820 Automotive Platform
  126. Affected versionversion=Snapdragon 855+/860 Mobile Platform (SM8150-AC)
  127. Affected versionversion=Snapdragon 855 Mobile Platform
  128. Affected versionversion=Snapdragon 865 5G Mobile Platform
  129. Affected versionversion=Snapdragon 865+ 5G Mobile Platform (SM8250-AB)
  130. Affected versionversion=Snapdragon 870 5G Mobile Platform (SM8250-AC)
  131. Affected versionversion=Snapdragon 8+ Gen 1 Mobile Platform
  132. Affected versionversion=Snapdragon 8 Gen 3 Mobile Platform
  133. Affected versionversion=Snapdragon Auto 4G Modem
  134. Affected versionversion=Snapdragon Auto 5G Modem-RF
  135. Affected versionversion=Snapdragon Auto 5G Modem-RF Gen 2
  136. Affected versionversion=Snapdragon W5+ Gen 1 Wearable Platform
  137. Affected versionversion=Snapdragon X24 LTE Modem
  138. Affected versionversion=Snapdragon X50 5G Modem-RF System
  139. Affected versionversion=Snapdragon X55 5G Modem-RF System
  140. Affected versionversion=Snapdragon X5 LTE Modem
  141. Affected versionversion=Snapdragon X62 5G Modem-RF System
  142. Affected versionversion=Snapdragon X65 5G Modem-RF System
  143. Affected versionversion=Snapdragon XR1 Platform
  144. Affected versionversion=Snapdragon XR2 5G Platform
  145. Affected versionversion=Snapdragon XR2+ Gen 1 Platform
  146. Affected versionversion=SW5100
  147. Affected versionversion=SW5100P
  148. Affected versionversion=SXR1120
  149. Affected versionversion=SXR2130
  150. Affected versionversion=SXR2230P
  151. Affected versionversion=SXR2250P
  152. Affected versionversion=Vision Intelligence 100 Platform (APQ8053-AA)
  153. Affected versionversion=Vision Intelligence 200 Platform (APQ8053-AC)
  154. Affected versionversion=WCD9326
  155. Affected versionversion=WCD9330
  156. Affected versionversion=WCD9335
  157. Affected versionversion=WCD9341
  158. Affected versionversion=WCD9360
  159. Affected versionversion=WCD9370
  160. Affected versionversion=WCD9375
  161. Affected versionversion=WCD9380
  162. Affected versionversion=WCD9385
  163. Affected versionversion=WCD9390
  164. Affected versionversion=WCD9395
  165. Affected versionversion=WCN3610
  166. Affected versionversion=WCN3615
  167. Affected versionversion=WCN3620
  168. Affected versionversion=WCN3660B
  169. Affected versionversion=WCN3680B
  170. Affected versionversion=WCN3910
  171. Affected versionversion=WCN3950
  172. Affected versionversion=WCN3980
  173. Affected versionversion=WCN3988
  174. Affected versionversion=WCN3990
  175. Affected versionversion=WSA8810
  176. Affected versionversion=WSA8815
  177. Affected versionversion=WSA8830
  178. Affected versionversion=WSA8832
  179. Affected versionversion=WSA8835
  180. Affected versionversion=WSA8840
  181. Affected versionversion=WSA8845
  182. Affected versionversion=WSA8845H

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Qualcomm · Snapdragonversion=9206 LTE Modem; version=APQ8017; version=APQ8064AU; version=AQT1000; version=AR8035; version=CSRA6620; version=CSRA6640; version=CSRB31024; version=C-V2X 9150; version=FastConnect 6200; version=FastConnect 6700; version=FastConnect 6800; version=FastConnect 6900; version=FastConnect 7800; version=MDM9250; version=MDM9628; version=MDM9640; version=MDM9650; version=MSM8996AU; version=QAM8255P; version=QAM8650P; version=QAM8775P; version=QCA6174A; version=QCA6175A; version=QCA6391; version=QCA6420; version=QCA6421; version=QCA6426; version=QCA6430; version=QCA6431; version=QCA6436; version=QCA6554A; version=QCA6564; version=QCA6564A; version=QCA6564AU; version=QCA6574; version=QCA6574A; version=QCA6574AU; version=QCA6584AU; version=QCA6595; version=QCA6595AU; version=QCA6678AQ; version=QCA6696; version=QCA6698AQ; version=QCA6777AQ; version=QCA6787AQ; version=QCA6797AQ; version=QCA8081; version=QCA8337; version=QCA9367; version=QCA9377; version=QCC2073; version=QCC2076; version=QCM2290; version=QCM4290; version=QCM5430; version=QCM6125; version=QCM6490; version=QCN6024; version=QCN9024; version=QCN9074; version=QCS2290; version=QCS410; version=QCS4290; version=QCS5430; version=QCS610; version=QCS6125; version=QCS6490; version=Qualcomm 205 Mobile Platform; version=Qualcomm Video Collaboration VC1 Platform; version=Qualcomm Video Collaboration VC3 Platform; version=SA2150P; version=SA4150P; version=SA4155P; version=SA6145P; version=SA6150P; version=SA6155; version=SA6155P; version=SA8145P; version=SA8150P; version=SA8155; version=SA8155P; version=SA8195P; version=SA8530P; version=SA8540P; version=SA9000P; version=SD626; version=SD660; version=SD670; version=SD730; version=SD855; version=SD865 5G; version=SDM429W; version=SDX55; version=SDX61; version=SM4125; version=SM6250; version=SM6370; version=Smart Audio 200 Platform; version=Smart Audio 400 Platform; version=Smart Display 200 Platform (APQ5053-AA); version=Snapdragon 1200 Wearable Platform; version=Snapdragon 210 Processor; version=Snapdragon 212 Mobile Platform; version=Snapdragon 429 Mobile Platform; version=Snapdragon 460 Mobile Platform; version=Snapdragon 480 5G Mobile Platform; version=Snapdragon 480+ 5G Mobile Platform (SM4350-AC); version=Snapdragon 4 Gen 1 Mobile Platform; version=Snapdragon 625 Mobile Platform; version=Snapdragon 626 Mobile Platform; version=Snapdragon 660 Mobile Platform; version=Snapdragon 662 Mobile Platform; version=Snapdragon 670 Mobile Platform; version=Snapdragon 675 Mobile Platform; version=Snapdragon 678 Mobile Platform (SM6150-AC); version=Snapdragon 680 4G Mobile Platform; version=Snapdragon 685 4G Mobile Platform (SM6225-AD); version=Snapdragon 695 5G Mobile Platform; version=Snapdragon 710 Mobile Platform; version=Snapdragon 720G Mobile Platform; version=Snapdragon 730G Mobile Platform (SM7150-AB); version=Snapdragon 730 Mobile Platform (SM7150-AA); version=Snapdragon 732G Mobile Platform (SM7150-AC); version=Snapdragon 820 Automotive Platform; version=Snapdragon 855+/860 Mobile Platform (SM8150-AC); version=Snapdragon 855 Mobile Platform; version=Snapdragon 865 5G Mobile Platform; version=Snapdragon 865+ 5G Mobile Platform (SM8250-AB); version=Snapdragon 870 5G Mobile Platform (SM8250-AC); version=Snapdragon 8+ Gen 1 Mobile Platform; version=Snapdragon 8 Gen 3 Mobile Platform; version=Snapdragon Auto 4G Modem; version=Snapdragon Auto 5G Modem-RF; version=Snapdragon Auto 5G Modem-RF Gen 2; version=Snapdragon W5+ Gen 1 Wearable Platform; version=Snapdragon X24 LTE Modem; version=Snapdragon X50 5G Modem-RF System; version=Snapdragon X55 5G Modem-RF System; version=Snapdragon X5 LTE Modem; version=Snapdragon X62 5G Modem-RF System; version=Snapdragon X65 5G Modem-RF System; version=Snapdragon XR1 Platform; version=Snapdragon XR2 5G Platform; version=Snapdragon XR2+ Gen 1 Platform; version=SW5100; version=SW5100P; version=SXR1120; version=SXR2130; version=SXR2230P; version=SXR2250P; version=Vision Intelligence 100 Platform (APQ8053-AA); version=Vision Intelligence 200 Platform (APQ8053-AC); version=WCD9326; version=WCD9330; version=WCD9335; version=WCD9341; version=WCD9360; version=WCD9370; version=WCD9375; version=WCD9380; version=WCD9385; version=WCD9390; version=WCD9395; version=WCN3610; version=WCN3615; version=WCN3620; version=WCN3660B; version=WCN3680B; version=WCN3910; version=WCN3950; version=WCN3980; version=WCN3988; version=WCN3990; version=WSA8810; version=WSA8815; version=WSA8830; version=WSA8832; version=WSA8835; version=WSA8840; version=WSA8845; version=WSA8845H

Published CVSS scores

7.5Qualcomm, Inc.CVSS:3.1/AV:N/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.

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

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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