What’s Vulnerable › Vulnerabilities
CVE-2026-3100: An improper certificate validation vulnerability was found in the FTP Backup on the ADM.
- Severity: medium (CVSS 6.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-02-25 · updated 2026-06-17
- Weakness: CWE-295
Description
The FTP Backup on the ADM will not properly strictly enforce TLS certificate verification while connecting to an FTP server using FTPES/FTPS. An improper validated TLS/SSL certificates allows a remote attacker can intercept network traffic to perform a Man-in-the-Middle (MitM) attack, which may intercept, modify, or obtain sensitive information such as authentication credentials and backup data. 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 5.1.2.RE51.
Affected products
- Tenable ASUSTOR Data Master: from 4.1.0.rhu2 through 4.3.3.rof1; from 5.0.0.ra82 before 5.1.2.reo1 — fixed in 5.1.2.reo1
How to fix
Upgrade to a fixed version: Tenable ASUSTOR Data Master 5.1.2.reo1. Check the vendor advisory for mitigations.
References
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