CVE-2026-9512 Totolink CA750-PoE Setting cstecgi.cgi setPasswordCfg os command injection

Medium 5.3 Published Updated

Remote attackers can execute arbitrary OS commands via the setPasswordCfg function in Totolink CA750-PoE devices.

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-2026-9512?

CVE-2026-9512 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 flaw has been discovered in Totolink CA750-PoE 6.2c.510. This vulnerability affects the function setPasswordCfg of the file /cgi-bin/cstecgi.cgi of the component Setting Handler. Performing a manipulation of the argument admuser/admpass results in os command injection. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks.

Weakness: CWE-78, CWE-77

Which versions are affected by CVE-2026-9512?

How do I fix CVE-2026-9512?

No fix has been published for CVE-2026-9512 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-2026-9512 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-9512 exists.

Sources

Also known as GHSA-28vj-4cr8-q6x4.

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