Unquoted Service Path Vulnerability in Acer Backup Manager by Acer
CVE-2021-47826

8.5HIGH

Key Information:

Vendor

Acer

Status
Acer Backup Manager Module
Vendor
CVE Published:
16 January 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2021-47826?

Acer Backup Manager version 3.0.0.99 contains a vulnerability in the IScheduleSvc service due to an unquoted service path. This flaw allows local users to execute arbitrary code by inserting malicious executables in the path specified. The executable runs with elevated LocalSystem privileges, making it a serious concern for system integrity and security. Users are recommended to address this issue promptly to safeguard their systems.

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Affected Version(s)

Acer Backup Manager Module 3.0.0.99

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2021-47826 - Proof of Concept

References

https://www.exploit-db.com/exploits/49889
exploit
https://www.acer.com/ac/en/US/content/home
product
https://www.vulncheck.com/advisories/acer-backup-manager-...
third-party-advisory

CVSS V4

Score:
8.5
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Emmanuel Lujan
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