CVE-2020-37037 AVAST SecureLine 5.5.522.0 - 'SecureLine' Unquoted Service Path
Local attackers can exploit an unquoted service path in Avast SecureLine to execute arbitrary code with elevated system privileges.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-37037?
CVE-2020-37037 is a high-severity vulnerability in AVAST SecureLine, published on 1 Feb 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Avast SecureLine 5.5.522.0 contains an unquoted service path vulnerability that allows local users to potentially execute code with elevated system privileges. Attackers can exploit the unquoted path in the service configuration to inject malicious code that would execute with LocalSystem account permissions during service startup.
Weakness: CWE-428
Which versions are affected by CVE-2020-37037?
How do I fix CVE-2020-37037?
No fix has been published for CVE-2020-37037 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-37037 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-37037 exists.
Sources
Also known as GHSA-9rj3-rfg4-9w59.