CVE-2026-9514 Totolink CA750-PoE Setting cstecgi.cgi setNetworkDiag os command injection
Remote attackers can execute arbitrary OS commands on Totolink CA750-PoE devices via the network diagnostic settings handler.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-9514?
CVE-2026-9514 is a medium-severity command injection vulnerability in Totolink CA750-PoE, published on 25 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A security vulnerability has been detected in Totolink CA750-PoE 6.2c.510. Impacted is the function setNetworkDiag of the file /cgi-bin/cstecgi.cgi of the component Setting Handler. The manipulation of the argument NetDiagHost/NetDiagPingNum/NetDiagPingSize/NetDiagPingTimeOut/NetDiagTracertHop is directly passed by the attacker/so we can control the NetDiagHost/NetDiagPingNum/NetDiagPingSize/NetDiagPingTimeOut/NetDiagTracertHop leads to os command injection. The attack may be initiated remotely. The exploit has been disclosed publicly and may be used.
Which versions are affected by CVE-2026-9514?
How do I fix CVE-2026-9514?
No fix has been published for CVE-2026-9514 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-2026-9514 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-9514 exists.
Sources
Also known as GHSA-94gf-5wp7-whqp.