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High · 7.8 CVE-2025-71326 EUVD-2025-210288GHSA-qqxm-j467-m9mr

AVAST Antivirus 25.11 Unquoted Service Path Privilege Escalation

Published Jun 19, 2026 · Updated Jul 14, 2026 · Assigned by VulnCheck

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.

Affected products

VendorProductAffectedFixed
Avast AVAST Antivirus 25.11 —

References