CVE-2026-2686 SECCN Dingcheng G10 session_login.cgi qq os command injection
Remote attackers can execute arbitrary OS commands via the User argument in session_login.cgi on SECCN Dingcheng G10 devices.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-2686?
CVE-2026-2686 is a critical command injection vulnerability in SECCN Dingcheng G10, published on 19 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A security vulnerability has been detected in SECCN Dingcheng G10 3.1.0.181203. This impacts the function qq of the file /cgi-bin/session_login.cgi. The manipulation of the argument User leads to os command injection. The attack is possible to be carried out remotely. The exploit has been disclosed publicly and may be used.
Which versions are affected by CVE-2026-2686?
How do I fix CVE-2026-2686?
No fix has been published for CVE-2026-2686 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-2026-2686 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-2686 exists.
Sources
Also known as GHSA-87c2-mcff-93mr.