CVE-2025-12272: Tenda CH22 Firmware

Critical severity, CVSS 9.8. EPSS: 0.8% chance of exploitation in the next 30 days.

A security flaw has been discovered in Tenda CH22 1.0.0.1. This impacts the function fromAddressNat of the file /goform/addressNat. Performing a manipulation of the argument page results in 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 CH22 Firmware: version 1.0.0.1 only

Published 2025-10-27. Last modified 2026-10-08.