CVE-2026-24936 An improper input validation vulnerability was found in ADM while joining a AD Domain.

Critical 9.5 Published 3 Feb 2026 Updated 4 Feb 2026

Unauthenticated attackers can write arbitrary data to system files via improper input validation in ADM's AD Domain joining feature, leading to system compromise.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-24936?

CVE-2026-24936 is a critical path traversal vulnerability in ASUSTOR ADM, published on 3 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

When a specific function is enabled while joining a AD Domain from ADM, an improper input parameters validation vulnerability in a specific CGI program allowing an unauthenticated remote attacker to write arbitrary data to any file on the system. By exploiting this vulnerability, attackers can overwrite critical system files, leading to a complete system compromise. Affected products and versions include: from ADM 4.1.0 through ADM 4.3.3.ROF1 as well as from ADM 5.0.0 through ADM 5.1.1.RCI1.

Weakness: CWE-20

Which versions are affected by CVE-2026-24936?

It affects 1 product.

Products include Asustor Data Master.

How do I fix CVE-2026-24936?

No fix has been published for CVE-2026-24936 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2026-24936 being exploited?

There is no known exploitation of CVE-2026-24936 in the wild and no public exploit code.

Sources

Also known as GHSA-75g2-xj79-xvcw.