CVE-2026-1623: Totolink a7000r Firmware

Medium severity, CVSS 6.3. EPSS: 2.4% chance of exploitation in the next 30 days.

A weakness has been identified in Totolink A7000R 4.1cu.4154. Impacted is the function setUpgradeFW of the file /cgi-bin/cstecgi.cgi. This manipulation of the argument FileName causes command injection. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks.

Affected products

• Totolink a7000r Firmware: version 4.1cu.4154 only

Published 2026-01-29. Last modified 2026-06-17.