CVE-2026-2908: Tenda HG9 Loopback Detection Configuration Endpoint formLoopBack stack-based overflow

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-02-22 · updated 2026-06-17
Weakness: CWE-119

Description

A security vulnerability has been detected in Tenda HG9 300001138. Affected by this issue is some unknown functionality of the file /boaform/formLoopBack of the component Loopback Detection Configuration Endpoint. Such manipulation of the argument Ethtype leads to stack-based buffer overflow. The attack can be executed remotely. The exploit has been disclosed publicly and may be used.

Affected products

Tenda HG9: 300001138

References

https://github.com/QIU-DIE/cve-nneeww/issues/10
https://vuldb.com/?ctiid.347217
https://vuldb.com/?id.347217
https://vuldb.com/?submit.755202
https://www.tenda.com.cn/

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