CVE-2026-67822

—

CVSS 3.1

9.8 critical

EPSS

<1%p24

Published

Jul 31, 2026 (Jul 31, 2026)

Modified

Aug 31, 2026

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.

Weakness: CWE-121
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (0.3%)

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