CVE-2026-36606 Hardcoded credentials in n/a
Attackers can decrypt router configuration backups using a hardcoded DES key to recover admin and WiFi credentials.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-36606?
CVE-2026-36606 is a high-severity vulnerability in n/a, published on 3 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Weakness: CWE-798
Which versions are affected by CVE-2026-36606?
How do I fix CVE-2026-36606?
No fix has been published for CVE-2026-36606 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-36606 being exploited?
There is no known exploitation of CVE-2026-36606 in the wild and no public exploit code.
Sources
Also known as GHSA-qcpv-m3ww-37pw.