CVE-2025-57685 Command injection in n/a
Attackers can inject commands via the set_serial_cfg interface to gain root privileges and execute code on LB-Link routers.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-57685?
CVE-2025-57685 is a high-severity command injection vulnerability in n/a, published on 22 Sep 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The LB-Link routers, including the BL-AC2100_AZ3 V1.0.4, BL-WR4000 v2.5.0, BL-WR9000_AE4 v2.4.9, BL-AC1900_AZ2 v1.0.2, BL-X26_AC8 v1.2.8, and BL-LTE300_DA4 V1.2.3 models, are vulnerable to unauthorized command injection. Attackers can exploit this vulnerability by accessing the /goform/set_serial_cfg interface to gain the highest level of device privileges without authorization, enabling them to remotely execute malicious commands.
Weakness: CWE-77
Which versions are affected by CVE-2025-57685?
How do I fix CVE-2025-57685?
No fix has been published for CVE-2025-57685 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2025-57685 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-57685 exists.
Sources
Also known as GHSA-8qv2-qrvw-2mg4.