Home/CVE/The FTP Backup on the ADM will not properly strictly enforce TLS certificate verification while connecting to an FTP ser
CVE

CVE-2026-3100

The FTP Backup on the ADM will not properly strictly enforce TLS certificate verification while connecting to an FTP ser

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.

MEDIUM · CVSS 6.5 EPSS 0.00065
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-295Improper Certificate Validation
▤

Affected Products & Versions

2
asustor data master>= 4.1.0.rhu2 and <= 4.3.3.rof1
asustor data master>= 5.0.0.ra82 and < 5.1.2.reo1
▣

Scoring & Timeline

6.5
MEDIUM · CVSS v3.1 · security@asustor.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD25 Feb 2026 · 06:16 AM
CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://www.asustor.com/security/security_advisory_detail?id=53Vendor Advisory
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