CVE-2026-9533: Totolink CA750-Poe

Medium severity, CVSS 6.3. EPSS: 1.8% chance of exploitation in the next 30 days.

A vulnerability was detected in Totolink CA750-PoE 6.2c.510. The impacted element is the function recvUpgradeNewFw of the file /cgi-bin/cstecgi.cgi of the component Setting Handler. Performing a manipulation of the argument fwUrl/magicid results in os command injection. It is possible to initiate the attack remotely. The exploit is now public and may be used.

Affected products

• Totolink CA750-Poe: version 6.2c.510 only

Published 2026-05-26. Last modified 2026-07-23.