Race condition in Avast Antivirus - CVE-2025-10905

 

Race condition in Avast Antivirus - CVE-2025-10905

Published: December 8, 2025


Vulnerability identifier: #VU119252
CSH Severity: Low
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-10905
CWE-ID: CWE-362
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a race condition in MiniFilter driver. A local user can disable the real-time protection and self-defense mechanisms.


Affected software

Avast Antivirus

How to mitigate CVE-2025-10905

Install updates from vendor's website.

Avast Antivirus - update to 25.9.10453

External References

Related Security Bulletins