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OpenAdvisories
Medium · 6.3 CVE-2026-24934 EUVD-2026-5285GHSA-53xr-2xx3-73wm

An improper certificate validation vulnerability was found in ADM while querying an external server for the device's WAN IP address.

Published Feb 3, 2026 · Updated Feb 3, 2026 · Assigned by ASUSTOR1

Description

The DDNS function uses an insecure HTTP connection or fails to validate the SSL/TLS certificate when querying an external server for the device's WAN IP address. An unauthenticated remote attacker can perform a Man-in-the-Middle (MitM) attack to spoof the response, leading the device to update its DDNS record with an incorrect IP address.
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.

Affected products

VendorProductAffectedFixed
ASUSTOR ADM 4.1.0 – ≤ 4.3.3.ROF1, 5.0.0 – ≤ 5.1.1.RCI1 —

References