CVE-2025-6619: Totolink CA300-Poe Firmware

Critical severity, CVSS 9.8. EPSS: 2.4% chance of exploitation in the next 30 days.

A vulnerability was found in TOTOLINK CA300-PoE 6.2c.884. It has been declared as critical. Affected by this vulnerability is the function setUpgradeFW of the file upgrade.so. The manipulation of the argument FileName leads to os command injection. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.

Affected products

• Totolink CA300-Poe Firmware: version 6.2c.884 only

Published 2025-06-25. Last modified 2026-06-17.