CVE-2026-2907: Tenda HG9 Firmware

High severity, CVSS 8.8. EPSS: 1% chance of exploitation in the next 30 days.

A weakness has been identified in Tenda HG9 300001138. Affected by this vulnerability is an unknown functionality of the file /boaform/formgponConf of the component GPON Configuration Endpoint. This manipulation of the argument fmgpon_loid/fmgpon_loid_password causes stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be used for attacks.

Affected products

• Tenda HG9 Firmware: version 300001138 only

Published 2026-02-22. Last modified 2026-06-17.