CVE-2026-5991: Tenda f451 Firmware

High severity, CVSS 8.8. EPSS: 0.9% chance of exploitation in the next 30 days.

A vulnerability was found in Tenda F451 1.0.0.7. Affected by this issue is the function formWrlExtraSet of the file /goform/WrlExtraSet. The manipulation of the argument GO results in stack-based buffer overflow. The attack may be launched remotely. The exploit has been made public and could be used.

Affected products

• Tenda f451 Firmware: version 1.0.0.7 only

Published 2026-04-10. Last modified 2026-06-17.