CVE-2026-36606
HIGH
NVD
CVSS Score
7.1
Severity
HIGH
Published
Jun 03, 2026
Vendor
unknown
Description
Mercusys AC12G (EU) V1 router with firmware AC12G(EU)_V1_200909 encrypts configuration backups with a hardcoded DES key using single DES in ECB mode. An attacker who obtains a backup file can decrypt it to recover all stored credentials including admin password, WiFi PSK, and DDNS credentials.