CVE-2026-36603

8.1 Élevée

Publiée le 03/06/2026 à 20:16 · Modifiée le 22/07/2026 à 21:10 · Analyse NVD reportée · Source : cve@mitre.org

Description

Mercusys AC12G (EU) V1 router with firmware AC12G(EU)_V1_200909 exposes 15 of 18 UPnP IGD actions without authentication on port 1900, including AddPortMapping and GetExternalIPAddress. UPnP is enabled by default through the admin interface, allowing any unauthenticated LAN device to create arbitrary port forwarding rules and access WAN traffic statistics.

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Scores CVSS

Version	Score	Source	Vecteur
3.1	8.1 Élevée	134c704f-9b21-4f2e-91b3-4a467353bcc0	`CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N`

Faiblesses (CWE)

CWE-306

Références

https://github.com/Tymbark7372/MERCUSYS-AC12G/blob/master/advisories/CVE-2026-36603.md

Ailleurs

NVD
CVE.org
CIRCL Vulnerability-Lookup
CERT-FR
GitHub Advisories