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.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 03 Jun 2026 21:15:00 +0000

Type Values Removed Values Added
Title Hardcoded DES Key Enables Decryption of Backups and Exposure of Credentials
Weaknesses CWE-200
CWE-256
CWE-310

Wed, 03 Jun 2026 19:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-798
Metrics cvssV3_1

{'score': 7.1, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 03 Jun 2026 18:45:00 +0000

Type Values Removed Values Added
Title Hardcoded DES Key Enables Decryption of Backups and Exposure of Credentials
Weaknesses CWE-200
CWE-256
CWE-310

Wed, 03 Jun 2026 17:45:00 +0000

Type Values Removed Values Added
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.
References

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-06-03T18:32:24.969Z

Reserved: 2026-04-06T00:00:00.000Z

Link: CVE-2026-36606

cve-icon Vulnrichment

Updated: 2026-06-03T18:32:19.105Z

cve-icon NVD

Status : Received

Published: 2026-06-03T18:16:21.677

Modified: 2026-06-03T19:16:31.350

Link: CVE-2026-36606

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-03T21:00:06Z

Weaknesses