CVE-2020-36976CWE-428

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

High · published January 27, 2026

CVSS v4.0
8.5
EPSS
0%
Percentile
7.3
In the wild
Unconfirmed
What it is

⚡ An unquoted service path in Acer's Global Registration Service paves the way for local users to execute arbitrary code! 🚀 Think of this vulnerability like a poorly labeled package in a warehouse. If the staff don’t check the label, they might place a dangerous item right where everyone can access it, leading to chaos! An attacker could slip in malicious executables that run with elevated LocalSystem privileges during startup, potentially giving them control over the entire system. This could lead to unauthorized access, data breaches, or even taking the system hostage. Absolutely devastating!

Put simply

Think of this vulnerability like a poorly labeled package in a warehouse. If the staff don’t check the label, they might place a dangerous item right where everyone can access it, leading to chaos! The issue lies in the unquoted service path in the service configuration at C:\Program Files (x86)\Acer\Registration\. This allows local users to exploit the path to inject and execute malicious code when the service starts.

What to do

An attacker could slip in malicious executables that run with elevated LocalSystem privileges during startup, potentially giving them control over the entire system. This could lead to unauthorized access, data breaches, or even taking the system hostage. Absolutely devastating! To fix this, update the service path in the configuration to be properly quoted. Additionally, review and patch to version 1.0.0.4 or later to mitigate this vulnerability. Regularly audit and monitor for unauthorized changes in service configurations. You've got this! Follow these steps and you'll secure your systems against this vulnerability in no time. 🛡️

The record
Technical detail
CVSS v4.0
8.5 · HIGH
Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00181 · 7.3th percentile
Weakness
CWE-428 · Unquoted Search Path or Element
Published
2026-01-27T18:51Z
EPSS history
Timeline
  • 27 JAN 18:51Z
    Global Registration Service 1.0.0.3 - 'GREGsvc.exe' Unquoted Service Path
    cvelistv5