CVE-2026-24934 Security feature bypass in ADM

Medium 6.3 Published Updated

Attackers can perform Man-in-the-Middle attacks to spoof WAN IP responses, causing devices to update DDNS records with incorrect addresses.

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-2026-24934?

CVE-2026-24934 is a medium-severity 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

The DDNS function uses an insecure HTTP connection or fails to validate the SSL/TLS certificate when querying an external server for the device's WAN IP address. An unauthenticated remote attacker can perform a Man-in-the-Middle (MitM) attack to spoof the response, leading the device to update its DDNS record with an incorrect IP address. 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-295

Which versions are affected by CVE-2026-24934?

It affects 1 product.

Products include Asustor Data Master.

How do I fix CVE-2026-24934?

No fix has been published for CVE-2026-24934 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-24934 being exploited?

There is no known exploitation of CVE-2026-24934 in the wild and no public exploit code.

Sources

Also known as GHSA-53xr-2xx3-73wm.

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