CVE-2026-25266

Service interruption via power-state IOCTL memory corruption

Published May 4, 2026 · Updated May 4, 2026

Memory corruption in Qualcomm Snapdragon Windows WLAN Host allows local users to interrupt service through a power-state IOCTL command. The host processes the IOCTL through an exposed dangerous function while the device is in power-save state, corrupting memory; Qualcomm has not disclosed the function name or precise bounds error. Low-privileged local access is required, no user interaction is needed, and Qualcomm's assessment limits the reported consequence to availability loss.

CVSS severity5.5
Medium
EPSS probability0.07%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory corruption in Qualcomm Snapdragon Windows WLAN Host allows local users to interrupt service through a power-state IOCTL command. The host processes the IOCTL through an exposed dangerous function while the device is in power-save state, corrupting memory; Qualcomm has not disclosed the function name or precise bounds error. Low-privileged local access is required, no user interaction is needed, and Qualcomm's assessment limits the reported consequence to availability loss.

The record

CVE
CVE-2026-25266
Published
May 4, 2026
Updated
May 4, 2026
Vendor
Qualcomm
Product
Snapdragon
Classifications
CWE-787, CWE-749
Attack vector
local
Privileges
authenticated

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=Cologne
  2. Affected versionversion=FastConnect 6900
  3. Affected versionversion=FastConnect 7800
  4. Affected versionversion=SC8380XP
  5. Affected versionversion=Snapdragon AR1 Gen 1 Platform
  6. Affected versionversion=WCD9378C
  7. Affected versionversion=WCD9380
  8. Affected versionversion=WCD9385
  9. Affected versionversion=WCN7861
  10. Affected versionversion=WCN7880
  11. Affected versionversion=WSA8830
  12. Affected versionversion=WSA8832
  13. Affected versionversion=WSA8835
  14. Affected versionversion=WSA8840
  15. Affected versionversion=WSA8845
  16. Affected versionversion=WSA8845H
  17. Affected versionversion=X2000077
  18. Affected versionversion=X2000086
  19. Affected versionversion=X2000090
  20. Affected versionversion=X2000092
  21. Affected versionversion=X2000094
  22. Affected versionversion=XG101002
  23. Affected versionversion=XG101032
  24. Affected versionversion=XG101039

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Qualcomm · Snapdragonversion=Cologne; version=FastConnect 6900; version=FastConnect 7800; version=SC8380XP; version=Snapdragon AR1 Gen 1 Platform; version=WCD9378C; version=WCD9380; version=WCD9385; version=WCN7861; version=WCN7880; version=WSA8830; version=WSA8832; version=WSA8835; version=WSA8840; version=WSA8845; version=WSA8845H; version=X2000077; version=X2000086; version=X2000090; version=X2000092; version=X2000094; version=XG101002; version=XG101032; version=XG101039

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
5.5Qualcomm, Inc.CVSS:3.1/AV:L/AC:L/PR:L/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)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
CWE-749Exposed Dangerous Method or Function

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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