What is GHSA-3xxh-hm67-x74r?

GHSA-3xxh-hm67-x74r is a security advisory published by GitHub Security Advisories with Critical severity. Tenda W6-S 1.0.0.4(510) contains a stack-based buffer overflow vulnerability in the /goform...

Which CVE IDs does GHSA-3xxh-hm67-x74r cover?

GHSA-3xxh-hm67-x74r covers the following CVE IDs: CVE-2026-67822. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-3xxh-hm67-x74r?

GHSA-3xxh-hm67-x74r has a CVSS v3 base score of 9.8, published by GitHub Security Advisories.

GHSA-3xxh-hm67-x74rCriticalCVSS 9.8

Tenda W6-S 1.0.0.4(510) contains a stack-based buffer overflow vulnerability in the /goform...

Vendor

GitHub Security Advisories

Published

July 31, 2026

Last Modified

July 31, 2026

🔗 CVE IDs covered (1)

CVE-2026-67822 →

📋 Description

Tenda W6-S 1.0.0.4(510) contains a stack-based buffer overflow vulnerability in the /goform/wifiSSIDset endpoint. The function formwrlSSIDset uses sprintf to copy user-controlled 'GO' and 'index' parameters into a 64-byte stack buffer without length restriction, leading to stack overflow.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-67822
https://github.com/Tristerjh/Tenda/blob/main/Tenda_W6-S_GO_overflow.md
https://github.com/advisories/GHSA-3xxh-hm67-x74r