CVE-2025-21455 Time-of-check Time-of-use (TOCTOU) Race Condition in Camera_Linux
A race condition in the Camera_Linux driver allows memory corruption via IOCTL, potentially enabling code execution or privilege escalation on Snapdragon devices.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-21455?
CVE-2025-21455 is a high-severity vulnerability in Qualcomm Fastconnect 6800 Firmware, published on 6 Aug 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Memory corruption while submitting blob data to kernel space though IOCTL.
Weakness: CWE-367
Which versions are affected by CVE-2025-21455?
It affects 29 products.
Products include Qualcomm Fastconnect 6800 Firmware, Qualcomm Fastconnect 6900 Firmware, Qualcomm Fastconnect 7800 Firmware, Qualcomm Qca6391 Firmware, Qualcomm Qca6426 Firmware, Qualcomm Qca6436 Firmware and 23 more.
How do I fix CVE-2025-21455?
No fix has been published for CVE-2025-21455 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-21455 being exploited?
There is no known exploitation of CVE-2025-21455 in the wild and no public exploit code.
Other vulnerabilities in Qualcomm Fastconnect 6800 Firmware
Sources
Also known as GHSA-h7p6-fc49-hc5h.