CVE-2026-24934 PUBLISHED

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

Assigner: ASUSTOR1
Reserved: 28.01.2026 Published: 03.02.2026 Updated: 03.02.2026

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.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N
CVSS Score: 6.3

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	Low	Integrity	Low
Attack Requirements	Present	Availability	None	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	ASUSTOR
Product	ADM
Versions	Default: unaffected affected from 4.1.0 to 4.3.3.ROF1 (incl.) affected from 5.0.0 to 5.1.1.RCI1 (incl.)

Credits

Nuke reporter

References

https://www.asustor.com/security/security_advisory_detail?id=50

Problem Types

CWE-295 Improper Certificate Validation CWE

Impacts

CAPEC-158 Sniffing Network Traffic