CVE-2025-71326 AVAST Antivirus 25.11 Unquoted Service Path Privilege Escalation
Local attackers can exploit an unquoted service path in AVAST Antivirus to execute arbitrary code with SYSTEM privileges.
- 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-2025-71326?
CVE-2025-71326 is a high-severity vulnerability in AVAST Antivirus, published on 19 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
AVAST Antivirus 25.11 contains an unquoted service path vulnerability in the SecureLine service that allows local non-privileged users to execute code with elevated SYSTEM privileges. Attackers can exploit the unquoted binary path in the service configuration to inject malicious executables that execute with high-level system permissions.
Weakness: CWE-428
Which versions are affected by CVE-2025-71326?
How do I fix CVE-2025-71326?
No fix has been published for CVE-2025-71326 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-71326 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-71326 exists.
Sources
Also known as GHSA-qqxm-j467-m9mr.