CVE-2026-24934

Low

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.

SeverityLow

CVSS3.7

Exploit probability—

ProductAsustor Data Master

PublishedFeb 3, 2026

First seenFeb 3, 2026

Weakness typeCWE-295CWE-295

How to fix

Update

asustor data_master5.1.2.re51 or later

Vendor advisories

asustor.com/security/security_advisory_detail?id=50

Affected products

Product	Affected versions	Fixed in
asustor data_master	4.1.0.rhu2 ≤ v ≤ 4.3.3.rof1, 5.0.0.ra82 ≤ v < 5.1.2.re51	5.1.2.re51

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