CVE-2026-36606

HighCVSS 7.1/10Last modified Jul 22, 2026

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.

Metrics

CVSS 3.1 7.1/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Weakness enumeration

CWE-798

Affected software

No affected versions have been published.

Timeline

Published
Jun 3, 2026
Last modified
Jul 22, 2026
NVD status
Deferred

Related CVEs from 2026

CVE-2026-366078.8Mercusys AC12G (EU) V1 router with firmware AC12G(EU)_V1_200909 allows unauthenticated brute-force attacks via the TDDP password change endpCVE-2026-366088.8Mercusys AC12G (EU) V1 router with firmware AC12G(EU)_V1_200909 allows UPnP AddPortMapping to forward external ports to the router's own admCVE-2026-366097.3Mercusys AC12G (EU) V1 router with firmware AC12G(EU)_V1_200909 uses a static authentication nonce that does not change between requests froCVE-2026-36617.2A flaw has been found in Wavlink WL-NU516U1 240425. This affects the function ota_new_upgrade of the file /cgi-bin/adm.cgi. This manipulatioCVE-2026-366105.9Mercusys AC12G (EU) V1 with firmware AC12G(EU)_V1_200909 transmits DDNS credentials over plaintext HTTP with only Base64 encoding. The firmwCVE-2026-366117.3Mercusys AC12G (EU) V1 with firmware AC12G(EU)_V1_200909 returns 128 bytes of uninitialized buffer when receiving POST requests without SOAPCVE-2026-366126.4Mercusys AC12G (EU) V1 with firmware AC12G(EU)_V1_200909 enables WPS 2.0 by default with a weak lockout policy (60-second lockout after 10 aCVE-2026-366134.3Mercusys AC12G (EU) V1 with firmware AC12G(EU)_V1_200909 returns 128 bytes of uninitialized internal buffer contents when receiving HTTP POSCVE-2026-366154.3Mercusys AC12G (EU) V1 with firmware AC12G(EU)_V1_200909 exposes an undocumented /agileconfigreset endpoint that returns internal buffer conCVE-2026-366165.9Mercusys AC12G (EU) V1 with firmware AC12G(EU)_V1_200909 contains hardcoded WiFi driver credentials including a RADIUS shared secret, WPS teCVE-2026-366184.3Mercusys AC12G (EU) V1 with firmware AC12G(EU)_V1_200909 responds to version.bind CHAOS TXT queries, disclosing the DNS resolver software veCVE-2026-36627.2A vulnerability has been found in Wavlink WL-NU516U1 240425. This vulnerability affects the function usb_p910 of the file /cgi-bin/adm.cgi.
CVE-2026-36606: High severity, CVSS 7.1 | Vulnix