Advisories

AVAST Antivirus 25.11 Unquoted Service Path Privilege Escalation

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severity
high
date
Affecting
  • AVAST Antivirus <= 25.11

CWE
  • CWE-428 Unquoted Search Path or Element
CVSS
8.5
CVSS V4 Vector
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
Credit
Milad Karimi (Ex3ptionaL)
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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