Vulnerability in Asustor Adm
CVE-2026-24932
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.
Vulnerability class: Improper Certificate Validation
EPSS: 0.002 (10.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Asustor Adm — versions 4.1.0, 5.0.0
- Asustor Data_master
Weakness classification (CWE)
References
- security@asustor.com (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-24932?
- CVE-2026-24932 is a medium-severity vulnerability in Asustor Adm, classified under Improper Certificate Validation. CVSS score: 5.9/10. Published 2026-02-03.
- How severe is CVE-2026-24932?
- Medium severity. CVSS v3 base score is 5.9 out of 10.