CVE-2026-36610

MEDIUM

Mercusys AC12G (EU) V1 Firmware AC12G(EU)_V1_200909 - Unauthenticated DDNS Credential Exposure via Plaintext HTTP

Title source: llm
STIX 2.1

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.

References (1)

Core 1

Scores

CVSS v3 5.9
EPSS 0.0015
EPSS Percentile 4.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-319 CWE-523
Status published
Published Jun 03, 2026
Tracked Since Jun 03, 2026