CVE-2026-36611

HIGH EPSS 13.9%

Published Jun 3, 20264w ago · Modified Jun 17, 20262w ago

7.3 CVSS 3.1

High

Published Jun 3, 2026 4w ago

Last Modified Jun 17, 2026 2w ago

Description

Mercusys AC12G (EU) V1 with firmware AC12G(EU)_V1_200909 returns 128 bytes of uninitialized buffer when receiving POST requests without SOAPAction header on UPnP port 1900, exposing internal memory to unauthenticated adjacent network attackers.

CVSS Details

Base Score

7.3

Exploitability

3.9

Impact

3.4

Vector string

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Attack Vector Network

Attack Complexity Low

Privileges Required None

User Interaction None

Scope Unchanged

Confidentiality Low

Integrity Low

Availability Low

Threat Intelligence

EPSS Exploit Probability

13.9% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor Information Exposure

References 1

github.com https://github.com/Tymbark7372/MERCUSYS-AC12G/blob/master/advisories/CVE-2026-36611.md

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.