High severity · published Jan 16, 2026
CVE-2021-47825
Acer Updater Service 1.2.3500.0 - 'UpdaterService.exe' Unquoted Service Path
7.8
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 7% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AU
Acer Updater Service · Acer
1.2.3500.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-47825
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-47825
www.acer.com
https://www.acer.com/ac/en/US/content/home
www.exploit-db.com
https://www.exploit-db.com/exploits/49890
www.vulncheck.com
https://www.vulncheck.com/advisories/acer-updater-service-updaterserviceexe-unquoted-service-path