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 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.
References
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:asustor:data_master:*:*:*:*:*:*:*:*
cpe:2.3:o:asustor:data_master:*:*:*:*:*:*:*:*

History

26 Feb 2026, 16:33

Type Values Removed Values Added
References () https://www.asustor.com/security/security_advisory_detail?id=53 - () https://www.asustor.com/security/security_advisory_detail?id=53 - Vendor Advisory
CPE cpe:2.3:o:asustor:data_master:*:*:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 6.5
First Time Asustor data Master
Asustor

25 Feb 2026, 07:16

Type Values Removed Values Added
Summary (en) Improper Certificate Validation vulnerability in ASUSTOR ADM FTP Backup on Linux, x86, ARM, 64 bit allows Sniffing Attacks.This issue affects ADM: from 4.1.0 through 4.3.3.ROF1, from 5.0.0 through 5.1.2.RE51. (en) 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.

25 Feb 2026, 06:16

Type Values Removed Values Added
New CVE

Information

Published : 2026-02-25 06:16

Updated : 2026-02-26 16:33


NVD link : CVE-2026-3100

Mitre link : CVE-2026-3100

CVE.ORG link : CVE-2026-3100


JSON object : View

Products Affected

asustor

  • data_master
CWE
CWE-295

Improper Certificate Validation