VulnerabilityDeferred

CVE-2026-36610

The firmware contains no TLS implementation, allowing man-in-the-middle interception of DDNS service credentials.

MEDIUM 5.9EPSS 0.15%

Does this matter?

Lower severity and a low EPSS score (0.15%). Track it; it rarely justifies an emergency change on its own.

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.

CVSS 3.1: 5.9 MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS: 0.15% probability · 4th percentile
CISA KEV: Not listed
Weakness: CWE-319, CWE-523
Source: cve@mitre.org

References

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

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.