CVE-2025-9748: Tenda CH22 Firmware

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

A vulnerability was determined in Tenda CH22 1.0.0.1. Affected by this issue is the function fromIpsecitem of the file /goform/IPSECsave of the component httpd. Executing manipulation of the argument ipsecno can lead to stack-based buffer overflow. The attack may be performed from remote.

Affected products

• Tenda CH22 Firmware: version 1.0.0.1 only

Published 2025-08-31. Last modified 2026-06-17.