Vulnerability · Published Feb 3, 2026 · Assigned by ASUSTOR1

CVE-2026-24932An improper certificate validation vulnerability was found in ADM while updating the DDNS settings.

High 8.9

In plain English

A high-severity improper certificate validation in ADM from ASUSTOR. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 13% of all known vulnerabilities).

Severity (CVSS 4.0)8.9High

Exploit odds (30 days)0.2%top 87.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
ASUSTOR	ADM	4.1.0 – through 4.3.3.ROF15.0.0 – through 5.1.1.RCI1

Weakness: CWE-295 · Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N

References

https://www.asustor.com/security/security_advisory_detail?id=50 vendor-advisory