CVE-2026-2181: Tenda RX3 Firmware

High severity, CVSS 8.8. EPSS: 0.7% chance of exploitation in the next 30 days.

A security flaw has been discovered in Tenda RX3 16.03.13.11. Affected by this vulnerability is an unknown functionality of the file /goform/openSchedWifi. Performing a manipulation of the argument schedStartTime/schedEndTime results in stack-based buffer overflow. The attack may be initiated remotely. The exploit has been released to the public and may be used for attacks.

Affected products

• Tenda RX3 Firmware: version 16.03.13.11 only

Published 2026-02-08. Last modified 2026-06-17.