High severity · published Jan 16, 2026
CVE-2021-47826
Acer Backup Manager Module 3.0.0.99 - 'IScheduleSvc.exe' Unquoted Service Path
7.8
CVSS
0.2%
EPSS
No
On KEV
Description
Acer Backup Manager 3.0.0.99 contains an unquoted service path vulnerability in the NTI IScheduleSvc service that allows local users to potentially execute arbitrary code. Attackers can exploit the unquoted path in C:\Program Files (x86)\NTI\Acer Backup Manager\ to inject malicious executables that would run with elevated LocalSystem privileges.
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 6% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AB
Acer Backup Manager Module · Acer
3.0.0.99 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-47826
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-47826
www.acer.com
https://www.acer.com/ac/en/US/content/home
www.exploit-db.com
https://www.exploit-db.com/exploits/49889
www.vulncheck.com
https://www.vulncheck.com/advisories/acer-backup-manager-module-ischedulesvcexe-unquoted-service-path