CVE-2025-9812: Tenda CH22 Firmware

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

A vulnerability was determined in Tenda CH22 1.0.0.1. This vulnerability affects the function formexeCommand of the file /goform/exeCommand. Executing manipulation of the argument cmdinput can lead to buffer overflow. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized.

Affected products

• Tenda CH22 Firmware: version 1.0.0.1 only

Published 2025-09-02. Last modified 2026-09-26.