CVE-2023-39617: Totolink x5000r Firmware

Critical severity, CVSS 9.8. EPSS: 1.7% chance of exploitation in the next 30 days.

TOTOLINK X5000R_V9.1.0cu.2089_B20211224 and X5000R_V9.1.0cu.2350_B20230313 were discovered to contain a remote code execution (RCE) vulnerability via the lang parameter in the setLanguageCfg function.

Affected products

• Totolink x5000r Firmware: version 9.1.0cu.2089_b20211224 only; version 9.1.0cu.2350_b20230313 only

Published 2023-08-21. Last modified 2026-06-17.