Unrated severityNVD Advisory· Published Jun 19, 2026
AVAST Antivirus 25.11 Unquoted Service Path Privilege Escalation
CVE-2025-71326
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.
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Affected products
1Patches
Vulnerability mechanics
References
3- www.exploit-db.com/exploits/52510mitreexploit
- www.vulncheck.com/advisories/avast-antivirus-unquoted-service-path-privilege-escalationmitrethird-party-advisory
- www.avast.commitreproduct
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