CVE-2026-24932

Medium

Description

The DDNS update function in ADM fails to properly validate the hostname of the DDNS server's TLS/SSL certificate. Although the connection uses HTTPS, an improper validated TLS/SSL certificates allows a remote attacker can intercept the communication to perform a Man-in-the-Middle (MitM) attack, which may obtain the sensitive information of DDNS updating process, including the user's account email, MD5 hashed password, and device serial number.This issue affects ADM: from 4.1.0 through 4.3.3.ROF1, from 5.0.0 through 5.1.1.RCI1.

SeverityMedium

CVSS5.9

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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