Vulnerability · Published Jan 28, 2026 · Assigned by VulnCheck

CVE-2020-36987Program Access Controller v1.2.0.0 - 'PACService.exe' Unquoted Service Path

High 7.8

In plain English

A high-severity security flaw in Program Access Controller from Gearboxcomputers. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 7% of all known vulnerabilities).

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.2%top 93.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

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.

Affected products (as reported)

VendorProductVersions
Gearboxcomputers Program Access Controller 1.2.0.0

Weakness: CWE-428 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References