CVE-2025-21441

Memory corruption via board-data IOCTL write

Published Apr 7, 2025 · Updated Feb 26, 2026

Out-of-bounds write in Qualcomm Snapdragon WLAN Host allows local users to corrupt memory through a board-data IOCTL request. The WLAN driver processes a user-space request to write board data and writes beyond the intended buffer; Qualcomm has not disclosed the exact routine or missing bounds check. Low-privileged local access is required, but Qualcomm has not disclosed whether exploitation causes code execution, data access, or a crash.

CVSS severity7.8
High
EPSS probability0.11%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds write in Qualcomm Snapdragon WLAN Host allows local users to corrupt memory through a board-data IOCTL request. The WLAN driver processes a user-space request to write board data and writes beyond the intended buffer; Qualcomm has not disclosed the exact routine or missing bounds check. Low-privileged local access is required, but Qualcomm has not disclosed whether exploitation causes code execution, data access, or a crash.

The record

CVE
CVE-2025-21441
Published
Apr 7, 2025
Updated
Feb 26, 2026
Vendor
Qualcomm
Product
Snapdragon
Classifications
CWE-787, T1068
Attack vector
local
Privileges
authenticated

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

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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=AQT1000
  2. Affected versionversion=FastConnect 6200
  3. Affected versionversion=FastConnect 6700
  4. Affected versionversion=FastConnect 6800
  5. Affected versionversion=FastConnect 6900
  6. Affected versionversion=FastConnect 7800
  7. Affected versionversion=QCA1062
  8. Affected versionversion=QCA1064
  9. Affected versionversion=QCA2062
  10. Affected versionversion=QCA2064
  11. Affected versionversion=QCA2065
  12. Affected versionversion=QCA2066
  13. Affected versionversion=QCA6391
  14. Affected versionversion=QCA6420
  15. Affected versionversion=QCA6430
  16. Affected versionversion=QCC2073
  17. Affected versionversion=QCC2076
  18. Affected versionversion=QCM5430
  19. Affected versionversion=QCM6490
  20. Affected versionversion=QCS5430
  21. Affected versionversion=QCS6490
  22. Affected versionversion=Qualcomm Video Collaboration VC3 Platform
  23. Affected versionversion=SC8180X+SDX55
  24. Affected versionversion=SC8380XP
  25. Affected versionversion=SM6250
  26. Affected versionversion=Snapdragon 7c Compute Platform (SC7180-AC)
  27. Affected versionversion=Snapdragon 7c Gen 2 Compute Platform (SC7180-AD) "Rennell Pro"
  28. Affected versionversion=Snapdragon 7c+ Gen 3 Compute
  29. Affected versionversion=Snapdragon 8c Compute Platform (SC8180X-AD) "Poipu Lite"
  30. Affected versionversion=Snapdragon 8c Compute Platform (SC8180XP-AD) "Poipu Lite"
  31. Affected versionversion=Snapdragon 8cx Compute Platform (SC8180X-AA, AB)
  32. Affected versionversion=Snapdragon 8cx Compute Platform (SC8180XP-AC, AF) "Poipu Pro"
  33. Affected versionversion=Snapdragon 8cx Gen 2 5G Compute Platform (SC8180X-AC, AF) "Poipu Pro"
  34. Affected versionversion=Snapdragon 8cx Gen 2 5G Compute Platform (SC8180XP-AA, AB)
  35. Affected versionversion=WCD9340
  36. Affected versionversion=WCD9341
  37. Affected versionversion=WCD9370
  38. Affected versionversion=WCD9375
  39. Affected versionversion=WCD9380
  40. Affected versionversion=WCD9385
  41. Affected versionversion=WSA8810
  42. Affected versionversion=WSA8815
  43. Affected versionversion=WSA8840
  44. Affected versionversion=WSA8845
  45. Affected versionversion=WSA8845H

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Qualcomm · Snapdragonversion=AQT1000; version=FastConnect 6200; version=FastConnect 6700; version=FastConnect 6800; version=FastConnect 6900; version=FastConnect 7800; version=QCA1062; version=QCA1064; version=QCA2062; version=QCA2064; version=QCA2065; version=QCA2066; version=QCA6391; version=QCA6420; version=QCA6430; version=QCC2073; version=QCC2076; version=QCM5430; version=QCM6490; version=QCS5430; version=QCS6490; version=Qualcomm Video Collaboration VC3 Platform; version=SC8180X+SDX55; version=SC8380XP; version=SM6250; version=Snapdragon 7c Compute Platform (SC7180-AC); version=Snapdragon 7c Gen 2 Compute Platform (SC7180-AD) "Rennell Pro"; version=Snapdragon 7c+ Gen 3 Compute; version=Snapdragon 8c Compute Platform (SC8180X-AD) "Poipu Lite"; version=Snapdragon 8c Compute Platform (SC8180XP-AD) "Poipu Lite"; version=Snapdragon 8cx Compute Platform (SC8180X-AA, AB); version=Snapdragon 8cx Compute Platform (SC8180XP-AC, AF) "Poipu Pro"; version=Snapdragon 8cx Gen 2 5G Compute Platform (SC8180X-AC, AF) "Poipu Pro"; version=Snapdragon 8cx Gen 2 5G Compute Platform (SC8180XP-AA, AB); version=WCD9340; version=WCD9341; version=WCD9370; version=WCD9375; version=WCD9380; version=WCD9385; version=WSA8810; version=WSA8815; version=WSA8840; version=WSA8845; version=WSA8845H

Published CVSS scores

7.8Qualcomm, Inc.CVSS:3.1/AV:L/AC:L/PR:L/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1068Exploitation for Privilege Escalation

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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