CVE-2026-6158: Totolink n300rh

High severity, CVSS 7.3. EPSS: 2.1% chance of exploitation in the next 30 days.

A flaw has been found in Totolink N300RH 6.1c.1353_B20190305. Affected is the function setUpgradeUboot of the file upgrade.so. This manipulation of the argument FileName causes os command injection. The attack is possible to be carried out remotely. The exploit has been published and may be used.

Affected products

• Totolink n300rh: version 6.1c.1353_B20190305 only

Published 2026-04-13. Last modified 2026-06-17.