CVE-2021-47826 Acer Backup Manager Module 3.0.0.99 - 'IScheduleSvc.exe' Unquoted Service Path

High 8.5 Published Updated

Local attackers can execute arbitrary code with elevated privileges by exploiting an unquoted service path in Acer Backup Manager.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2021-47826?

CVE-2021-47826 is a high-severity vulnerability in Acer Backup Manager Module, published on 16 Jan 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official 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.

Weakness: CWE-428

Which versions are affected by CVE-2021-47826?

How do I fix CVE-2021-47826?

No fix has been published for CVE-2021-47826 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-47826 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-47826 exists.

Sources

Also known as GHSA-qqx5-69wx-c8qc.

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