High severity7.3NVD Advisory· Published Jun 3, 2026· Updated Jun 4, 2026

CVE-2026-36611

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Mercusys/AC12Gllm-fuzzy
Range: V1

Patches

Vulnerability mechanics

References

github.com/Tymbark7372/MERCUSYS-AC12G/blob/master/advisories/CVE-2026-36611.mdnvd

News mentions

Mercusys AC12G Router: 15 Vulnerabilities Disclosed on June 3, 2026
Vypr Intelligence · Jun 3, 2026

cvss	0.474
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000