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CVE-2021-47825— Acer Updater Service 1.2.3500.0 - 'UpdaterService.exe' Unquoted Service Path

Quick assessment

Affected
Acer Acer Updater Service
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Acer Updater Service是中国台湾宏碁（Acer）公司的一个软件更新工具。 Acer Updater Service 1.2.3500.0版本存在代码问题漏洞，该漏洞源于服务路径存在未加引号的服务路径，可能导致权限提升。

CVSS 7.8 · High EPSS 0.18% · P7

Possible ATT&CK Techniques 1 AI

T1546.001 · Change Default File Association
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I. Basic Information for CVE-2021-47825

Vulnerability Information
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Vulnerability Title
Acer Updater Service 1.2.3500.0 - 'UpdaterService.exe' Unquoted Service Path
Source: CVE Program / CVE List V5
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未经引用的搜索路径或元素
Source: CVE Program / CVE List V5
Vulnerability Title
Acer Updater Service 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Acer Updater Service是中国台湾宏碁（Acer）公司的一个软件更新工具。 Acer Updater Service 1.2.3500.0版本存在代码问题漏洞，该漏洞源于服务路径存在未加引号的服务路径，可能导致权限提升。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Acer Acer Updater Service 1.2.3500.0 -

II. Public POCs for CVE-2021-47825

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III. Intelligence Information for CVE-2021-47825

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Vendor Advisories for CVE-2021-47825 (1)

Other References for CVE-2021-47825 (1)

Same Patch Batch · Acer · 2026-01-16 · 3 CVEs total

CVE-2021-47826 7.8 HIGH Acer Backup Manager Module 3.0.0.99 - 'IScheduleSvc.exe' Unquoted Service Path
CVE-2021-47823 7.8 HIGH ePowerSvc 6.0.3008.0 - 'ePowerSvc.exe' Unquoted Service Path

IV. Related Vulnerabilities

Same vendor: Acer
Same weakness: CWE-428

V. Comments for CVE-2021-47825

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