What is CVE-2026-3100?

CVE-2026-3100 is a medium-severity vulnerability in Asustor Adm, classified under Improper Certificate Validation. CVSS score: 6.5/10. Published 2026-02-25.

How severe is CVE-2026-3100?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Asustor Adm

CVE-2026-3100

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…

Vulnerability class: Improper Certificate Validation

EPSS: 0.002 (7.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N.

Affected products

Asustor Adm — versions 4.1.0, 5.0.0
Asustor Data_master

Weakness classification (CWE)

CWE-295 — Improper Certificate Validation

References

security@asustor.com (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2026-3100?: CVE-2026-3100 is a medium-severity vulnerability in Asustor Adm, classified under Improper Certificate Validation. CVSS score: 6.5/10. Published 2026-02-25.
How severe is CVE-2026-3100?: Medium severity. CVSS v3 base score is 6.5 out of 10.