CVE-2025-21455
Time-of-check Time-of-use (TOCTOU) Race Condition in Camera_Linux
Memory corruption while submitting blob data to kernel space though IOCTL.
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
Time-of-check Time-of-use (TOCTOU) Race Condition in Camera_Linux
Memory corruption while submitting blob data to kernel space though IOCTL.
- Record
CVE-2025-21455- 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-367
- Updated
- 2026-11-02
EUVDEUVD-2025-23809
Memory corruption while submitting blob data to kernel space though IOCTL.
- Record
EUVD-2025-23809- 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-h7p6-fc49-hc5h
Memory corruption while submitting blob data to kernel space though IOCTL.
Memory corruption while submitting blob data to kernel space though IOCTL.
- Record
GHSA-h7p6-fc49-hc5h- 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-367
- Updated
- 2026-11-02
NVD
Memory corruption while submitting blob data to kernel space though IOCTL.
- Record
CVE-2025-21455- 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-367
- Updated
- 2026-11-02
Affected products
- qualcomm fastconnect 6800 firmware
- qualcomm fastconnect 6900 firmware
- qualcomm fastconnect 7800 firmware
- qualcomm qca6391 firmware
- qualcomm qca6426 firmware
- qualcomm qca6436 firmware
- qualcomm qsm8250 firmware
- qualcomm sd865 5g firmware
- qualcomm sdx55 firmware
- qualcomm snapdragon 865\+ 5g mobile platform \(sm8250-ab\) firmware
- qualcomm snapdragon 865 5g mobile platform firmware
- qualcomm snapdragon 870 5g mobile platform \(sm8250-ac\) firmware
Show 18 moreShow less
- qualcomm snapdragon 8 gen 1 mobile platform firmware
- qualcomm snapdragon x55 5g modem-rf system firmware
- qualcomm snapdragon xr2 5g platform firmware
- qualcomm sw5100 firmware
- qualcomm sw5100p firmware
- qualcomm sxr2130 firmware
- qualcomm sxr2230p firmware
- qualcomm sxr2250p firmware
- qualcomm wcd9380 firmware
- qualcomm wcd9385 firmware
- qualcomm wcn3980 firmware
- qualcomm wcn3988 firmware
- qualcomm wsa8810 firmware
- qualcomm wsa8815 firmware
- qualcomm wsa8830 firmware
- qualcomm wsa8832 firmware
- qualcomm wsa8835 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-2025-21455 is a high vulnerability (CVSS 7.8) in Qualcomm Fastconnect 6800 Firmware, published August 6, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.08%, the 0th percentile. No source names a fixed version.