CVE-2025-71326
High
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.
SeverityHigh
CVSS7.8
Exploit probability—
ProductAVAST Antivirus
PublishedJun 19, 2026
First seenJun 19, 2026
Weakness typeCWE-428CWE-428
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Avast AVAST Antivirus | 25.11 | — |
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