CVE-2026-24933

An improper certificate validation vulnerability was found in ADM while sending HTTPS requests to the server.

Published Feb 3, 2026 CVSS 4.0 · 8.9 High EPSS < 1% KEV · Not listed
Description
The API communication component fails to validate the SSL/TLS certificate when sending HTTPS requests to the server. An improper certificates validation vulnerability allows an unauthenticated remote attacker can perform a Man-in-the-Middle (MitM) attack to intercept the cleartext communication, potentially leading to the exposure of sensitive user information, including account emails, MD5 hashed passwords, and device serial numbers.


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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Asustor data Master
CPEs cpe:2.3:o:asustor:data_master:*:*:*:*:*:*:*:*
Vendors & Products Asustor data Master
Metrics cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N'}

Type Values Removed Values Added
First Time appeared Asustor
Asustor adm
Vendors & Products Asustor
Asustor adm
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description The API communication component fails to validate the SSL/TLS certificate when sending HTTPS requests to the server. An improper certificates validation vulnerability allows an unauthenticated remote attacker can perform a Man-in-the-Middle (MitM) attack to intercept the cleartext communication, potentially leading to the exposure of sensitive user information, including account emails, MD5 hashed passwords, and device serial numbers. 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.
Title An improper certificate validation vulnerability was found in ADM while sending HTTPS requests to the server.
Weaknesses CWE-295
References
Metrics cvssV4_0

{'score': 8.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
ASUSTOR1
Published
Updated
Feb 3, 2026, 3:31 PM
Reserved
Jan 28, 2026, 8:40 AM
Status
Analyzed
Published
Feb 3, 2026, 3:15 AM
Modified
Jun 17, 2026, 10:23 AM