CVE-2025-21476
Buffer Copy Without Checking Size of Input in Computer Vision
Memory corruption when passing parameters to the Trusted Virtual Machine during the handshake.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Buffer Copy Without Checking Size of Input in Computer Vision
Memory corruption when passing parameters to the Trusted Virtual Machine during the handshake.
- Record
CVE-2025-21476- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-120
- Updated
- 2026-11-02
EUVDEUVD-2025-31004
Memory corruption when passing parameters to the Trusted Virtual Machine during the handshake.
- Record
EUVD-2025-31004- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-m9g8-x7f2-2hgc
Memory corruption when passing parameters to the Trusted Virtual Machine during the handshake.
Memory corruption when passing parameters to the Trusted Virtual Machine during the handshake.
- Record
GHSA-m9g8-x7f2-2hgc- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-120
- Updated
- 2026-11-02
NVD
Memory corruption when passing parameters to the Trusted Virtual Machine during the handshake.
- Record
CVE-2025-21476- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-120
- Updated
- 2026-11-02
Affected products
- qualcomm qca6391 firmware
- qualcomm qca6698aq firmware
- qualcomm qcm5430 firmware
- qualcomm qcm6490 firmware
- qualcomm qcm8550 firmware
- qualcomm qcn9011 firmware
- qualcomm qcn9012 firmware
- qualcomm qcn9274 firmware
- qualcomm qcs5430 firmware
- qualcomm qcs615 firmware
- qualcomm qcs6490 firmware
- qualcomm qcs8550 firmware
Show 31 moreShow less
- qualcomm qcs9100 firmware
- qualcomm sg8275 firmware
- qualcomm sg8275p firmware
- qualcomm sm6650 firmware
- qualcomm sm7635 firmware
- qualcomm sm7675 firmware
- qualcomm sm7675p firmware
- qualcomm sm8550 firmware
- qualcomm sm8550p firmware
- qualcomm sm8635 firmware
- qualcomm sm8635p firmware
- qualcomm sm8650 firmware
- qualcomm sm8650p firmware
- qualcomm sm8650q firmware
- qualcomm sm8750 firmware
- qualcomm sm8750p firmware
- qualcomm sxr2330p firmware
- qualcomm wcn3910 firmware
- qualcomm wcn3950 firmware
- qualcomm wcn6650 firmware
- qualcomm wcn6750 firmware
- qualcomm wcn6755 firmware
- qualcomm wcn6855 firmware
- qualcomm wcn6856 firmware
- qualcomm wcn7850 firmware
- qualcomm wcn7851 firmware
- qualcomm wcn7860 firmware
- qualcomm wcn7861 firmware
- qualcomm wcn7880 firmware
- qualcomm wcn7881 firmware
- qualcomm, inc. snapdragon
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-21476 is a high vulnerability (CVSS 7.8) in Qualcomm Qca6391 Firmware, published September 24, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.09%, the 0th percentile. No source names a fixed version.