CVE-2026-9515 Totolink CA750-PoE Setting cstecgi.cgi setUnloadUserData os command injection
Remote attackers can execute arbitrary OS commands via the plugin_version argument in the CA750-PoE setting 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-2026-9515?
CVE-2026-9515 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 vulnerability was detected in Totolink CA750-PoE 6.2c.510. The affected element is the function setUnloadUserData of the file /cgi-bin/cstecgi.cgi of the component Setting Handler. The manipulation of the argument plugin_version 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-2026-9515?
How do I fix CVE-2026-9515?
No fix has been published for CVE-2026-9515 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-2026-9515 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-9515 exists.
Sources
Also known as GHSA-chj8-3r5w-6fwr.