CVE-2026-9531: Totolink CA750-Poe

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

A weakness has been identified in Totolink CA750-PoE 6.2c.510. Impacted is the function setUpgradeUboot of the file /cgi-bin/cstecgi.cgi of the component Setting Handler. This manipulation of the argument FileName causes os command injection. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks.

Affected products

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

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