CVE-2026-6029 Totolink A7100RU CGI cstecgi.cgi setVpnAccountCfg os command injection
Remote attackers can execute arbitrary OS commands via the User argument in the VPN configuration handler of Totolink A7100RU routers.
- 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-2026-6029?
CVE-2026-6029 is a critical command injection vulnerability in Totolink A7100RU, published on 10 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability was detected in Totolink A7100RU 7.4cu.2313_b20191024. The affected element is the function setVpnAccountCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument User results in os command injection. The attack may be launched remotely. The exploit is now public and may be used.
Which versions are affected by CVE-2026-6029?
How do I fix CVE-2026-6029?
No fix has been published for CVE-2026-6029 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-2026-6029 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-6029 exists.
Sources
Also known as GHSA-2w2j-5vf6-6jfw.