CVE-2025-71326
AVAST Antivirus 25.11 Unquoted Service Path Privilege Escalation
- State
- Published
- Severity
- 8.5 High
- Published
- Jun 19, 2026
- Updated
- Jul 14, 2026
- Reserved
- Jun 8, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.5 High | 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 | VulnCheck |
| 3.1 | 7.8 High | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-428 Unquoted Search Path or Element
Affected Products
| Product | Versions |
|---|---|
AVAST AntivirusAvast |
|
References
- ExploitDB-52510exploit
- Official Product Homepageproduct
- VulnCheck Advisory: AVAST Antivirus 25.11 Unquoted Service Path Privilege Escalationthird-party-advisory
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