CVE-2026-36610

State: Published
Severity: 5.9 Medium
Published: Jun 3, 2026
Updated: Jun 3, 2026
Reserved: Apr 6, 2026

Description

Mercusys AC12G (EU) V1 with firmware AC12G(EU)_V1_200909 transmits DDNS credentials over plaintext HTTP with only Base64 encoding. The firmware contains no TLS implementation, allowing man-in-the-middle interception of DDNS service credentials.

Scores

CVSS	Score	Vector	Source
3.1	5.9 Medium	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N	CISA-ADP

Weaknesses

CWE-319 Cleartext Transmission of Sensitive Information
CWE-523 Unprotected Transport of Credentials

Affected Products

Product	Versions
n/an/a	n/aAffected

References

https://github.com/Tymbark7372/MERCUSYS-AC12G/blob/master/advisories/CVE-2026-36610.md

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