CVE-2021-45734: Totolink x5000r Firmware

High severity, CVSS 7.5. EPSS: 1.5% chance of exploitation in the next 30 days.

TOTOLINK X5000R v9.1.0u.6118_B20201102 was discovered to contain a stack overflow in the function setUrlFilterRules. This vulnerability allows attackers to cause a Denial of Service (DoS) via the url parameter.

Affected products

• Totolink x5000r Firmware: version 9.1.0u.6118_b20201102 only

Published 2022-02-04. Last modified 2026-06-17.