Vulnerability in Asustor Adm
CVE-2026-24935
A third-party NAT traversal module fails to validate SSL/TLS certificates when connecting to the signaling server. While subsequent access to device services requires additional authentication, a Man-in-the-Middle (MitM) attacker can intercept or redirect the NAT tunnel establishment. This could allow an attacker to disrupt service availability or facilitate further targeted attacks by acting as a proxy between the user and the device services. 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.
Vulnerability class: Improper Certificate Validation
EPSS: 0.001 (4.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.6 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L.
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-2026-24935?
- CVE-2026-24935 is a medium-severity vulnerability in Asustor Adm, classified under Improper Certificate Validation. CVSS score: 5.6/10. Published 2026-02-03.
- How severe is CVE-2026-24935?
- Medium severity. CVSS v3 base score is 5.6 out of 10.