CVE-2025-21431

Local information disclosure during guest VM connection

Published Apr 7, 2025 · Updated Apr 7, 2025

A TOCTOU race in Qualcomm Snapdragon Auto chipsets allows local users with low privileges to disclose information when a guest VM connects. Qualcomm has not published the checked resource, the state change between check and use, or the data exposed by the race. Exploitation requires local low-privilege access and a connected guest VM; the published impact is limited to confidentiality, with no integrity or availability effect.

CVSS severity5.5
Medium
EPSS probability0.08%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A TOCTOU race in Qualcomm Snapdragon Auto chipsets allows local users with low privileges to disclose information when a guest VM connects. Qualcomm has not published the checked resource, the state change between check and use, or the data exposed by the race. Exploitation requires local low-privilege access and a connected guest VM; the published impact is limited to confidentiality, with no integrity or availability effect.

The record

CVE
CVE-2025-21431
Published
Apr 7, 2025
Updated
Apr 7, 2025
Vendor
Qualcomm
Product
Snapdragon
Classifications
CWE-367, T1005
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 7, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 7, 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=QAM8255P
  2. Affected versionversion=QAM8295P
  3. Affected versionversion=QAM8620P
  4. Affected versionversion=QAM8650P
  5. Affected versionversion=QAM8775P
  6. Affected versionversion=QAMSRV1H
  7. Affected versionversion=QAMSRV1M
  8. Affected versionversion=QCA6574A
  9. Affected versionversion=QCA6574AU
  10. Affected versionversion=QCA6595
  11. Affected versionversion=QCA6595AU
  12. Affected versionversion=QCA6688AQ
  13. Affected versionversion=QCA6696
  14. Affected versionversion=QCA6698AQ
  15. Affected versionversion=SA6145P
  16. Affected versionversion=SA6150P
  17. Affected versionversion=SA6155
  18. Affected versionversion=SA6155P
  19. Affected versionversion=SA7255P
  20. Affected versionversion=SA7775P
  21. Affected versionversion=SA8145P
  22. Affected versionversion=SA8150P
  23. Affected versionversion=SA8155
  24. Affected versionversion=SA8155P
  25. Affected versionversion=SA8195P
  26. Affected versionversion=SA8255P
  27. Affected versionversion=SA8295P
  28. Affected versionversion=SA8540P
  29. Affected versionversion=SA8620P
  30. Affected versionversion=SA8650P
  31. Affected versionversion=SA8770P
  32. Affected versionversion=SA8775P
  33. Affected versionversion=SA9000P
  34. Affected versionversion=SRV1H
  35. Affected versionversion=SRV1L
  36. Affected versionversion=SRV1M

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Qualcomm · Snapdragonversion=QAM8255P; version=QAM8295P; version=QAM8620P; version=QAM8650P; version=QAM8775P; version=QAMSRV1H; version=QAMSRV1M; version=QCA6574A; version=QCA6574AU; version=QCA6595; version=QCA6595AU; version=QCA6688AQ; version=QCA6696; version=QCA6698AQ; version=SA6145P; version=SA6150P; version=SA6155; version=SA6155P; version=SA7255P; version=SA7775P; version=SA8145P; version=SA8150P; version=SA8155; version=SA8155P; version=SA8195P; version=SA8255P; version=SA8295P; version=SA8540P; version=SA8620P; version=SA8650P; version=SA8770P; version=SA8775P; version=SA9000P; version=SRV1H; version=SRV1L; version=SRV1M

Published CVSS scores

4.7NIST NVDCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
5.5Qualcomm, Inc.CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

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)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-367Time-of-check Time-of-use (TOCTOU) Race Condition
T1005Data from Local System

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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