CVE-2026-36613

MEDIUM

Mercusys AC12G (EU) V1 Firmware AC12G(EU)_V1_200909 - Unauthenticated Information Exposure via Undefined HTTP POST Paths

Title source: llm
STIX 2.1

Description

Mercusys AC12G (EU) V1 with firmware AC12G(EU)_V1_200909 returns 128 bytes of uninitialized internal buffer contents when receiving HTTP POST requests to undefined paths, exposing server state to unauthenticated adjacent network attackers.

Scores

CVSS v3 4.3
EPSS 0.0016
EPSS Percentile 5.4%
Attack Vector ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-125
Status published
Published Jun 03, 2026
Tracked Since Jun 03, 2026