CVE-2020-36987 Program Access Controller v1.2.0.0 - 'PACService.exe' Unquoted Service Path
Local attackers can execute arbitrary code with elevated privileges by exploiting an unquoted service path in Program Access Controller.
- 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-2020-36987?
CVE-2020-36987 is a high-severity vulnerability in Gearboxcomputers Program Access Controller, published on 28 Jan 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Program Access Controller 1.2.0.0 contains an unquoted service path vulnerability in PACService.exe that allows local attackers to execute code with elevated privileges. Attackers can exploit the unquoted path during system startup or reboot to inject and run malicious executables with LocalSystem permissions.
Weakness: CWE-428
Which versions are affected by CVE-2020-36987?
How do I fix CVE-2020-36987?
No fix has been published for CVE-2020-36987 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-36987 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-36987 exists.
Sources
Also known as GHSA-6xmg-rj2x-5j6g.