CVE-2020-36987 - CVE House

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Status published High CVE-2020-36987

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

8.5 CVSS

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

Mohammed Alshehri

References

More from Gearboxcomputers

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IP Watcher v3.0.0.30 - 'PACService.exe' Unquoted Service Path

Affected Vendor

Gearboxcomputers

View all reports →

Affected Software

Program Access Controller

Vulnerable Versions:

1.2.0.0

Timeline

Official Publish: January 28th, 2026

Last Modified: January 28th, 2026

Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)

MITRE ATT&CK TTPs

T1574 Hijack Execution Flow

Privilege Escalation

T1036 Masquerading

Defense Evasion

T1543 Create or Modify System Process

T1059 Command and Scripting Interpreter

T1569 System Services