CVE-2020-36976 - CVE House

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Status published High CVE-2020-36976

Global Registration Service 1.0.0.3 - 'GREGsvc.exe' Unquoted Service Path

8.5 CVSS

Vulnerability Description

Acer Global Registration Service 1.0.0.3 contains an unquoted service path vulnerability in its service configuration that allows local users to potentially execute arbitrary code. Attackers can exploit the unquoted path in C:\Program Files (x86)\Acer\Registration\ to inject malicious executables that would run with elevated LocalSystem privileges during service startup.

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:

Emmanuel Lujan

References

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Affected Vendor

Acer

View all reports →

Affected Software

Global Registration Service

Vulnerable Versions:

1.0.0.3

Timeline

Official Publish: January 27th, 2026

Last Modified: January 29th, 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