CVE-2021-47825 - CVE House
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Status published High CVE-2021-47825

Acer Updater Service 1.2.3500.0 - 'UpdaterService.exe' Unquoted Service Path

Vulnerability Description

Acer Updater Service 1.2.3500.0 contains an unquoted service path vulnerability that allows local users to execute code with elevated system privileges. Attackers can exploit the unquoted path in C:\Program Files\Acer\Acer Updater\ to inject malicious executables that will run with LocalSystem permissions 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

Affected Software

Acer Updater Service
Vulnerable Versions:
1.2.3500.0

Timeline

Official Publish: January 16th, 2026
Last Modified: January 16th, 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)

CWE-428

MITRE ATT&CK TTPs

T1574 Hijack Execution Flow
Privilege Escalation
T1036 Masquerading
Defense Evasion
T1543 Create or Modify System Process
Persistence
T1059 Command and Scripting Interpreter
Execution
T1569 System Services
Execution