CVE-2026-2907 Tenda HG9 GPON Configuration Endpoint formgponConf stack-based overflow
A stack-based buffer overflow in the Tenda HG9 GPON configuration endpoint allows remote attackers to execute arbitrary code.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-2907?
CVE-2026-2907 is a high-severity memory corruption vulnerability in Tenda HG9, published on 22 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Which versions are affected by CVE-2026-2907?
It affects 1 product.
Products include Tenda Hg9 Firmware.
How do I fix CVE-2026-2907?
No fix has been published for CVE-2026-2907 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-2907 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-2907 exists.
Other vulnerabilities in Tenda HG9
- CVE-2022-30023 Command injection in n/a
- CVE-2026-2905 Tenda HG9 Wireless Configuration Endpoint formWlanSetup stack-based overflow
- CVE-2026-2906 Tenda HG9 Samba Configuration Endpoint formSamba stack-based overflow
- CVE-2026-2908 Tenda HG9 Loopback Detection Configuration Endpoint formLoopBack stack-based overflow
- CVE-2026-2909 Tenda HG9 Diagnostic Ping Endpoint formPing stack-based overflow
Sources
Also known as GHSA-jgr4-277v-42mv.