Time-of-check Time-of-use (TOCTOU) Race Condition in Avast Antivirus - CVE-2025-13032
Published: December 8, 2025
Vulnerability identifier: #VU119251
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-13032
CWE-ID: CWE-367
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Avast Software s.r.o.
Affected software:
Avast Antivirus
Avast Antivirus
Detailed vulnerability description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists de to a double fetch issue in sandbox kernel driver. A local user can execute arbitrary code with elevated privileges via pool overflow.
How to mitigate CVE-2025-13032
Install updates from vendor's website.