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VULNERABILITIES

CVE-2026-67822 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NDDVolerionCVSS-B:7.1 HIGHVector:CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA: CISA-ADPCVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/Tristerjh/Tenda/blob/main/Tenda_W6-S_GO_overflow.md CISA-ADPExploitTechnical Analysis
https://github.com/Tristerjh/Tenda/blob/main/Tenda_W6-S_GO_overflow.md [email protected]ExploitTechnical Analysis

Weakness Enumeration

CWE-IDCWE NameSource
CWE-121Stack-based Buffer OverflowCISA-ADP

Affected Products

ProductVersions
Tenda W6-S
v1.0.0.4(510)

CPE

  • cpe:2.3:h:tenda:w6-s:*:*:*:*:*:*:*:*
  • cpe:2.3:o:tenda:w6-s_firmware:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-67822
NVD Published Date:
Jul 31, 2026
NVD Last Modified:
Aug 31, 2026
Source:
[email protected]
CVE-2026-67822 Details - Not Deferred