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CVE-2026-4008

Tenda W3 POST Parameter wifiSSIDset stack-based overflow

HIGH
8.8
CVSS Score
Published: March 12, 2026 at 06:32 AM UTC
Updated: June 17, 2026 at 10:55 AM UTC
2 products affected across 1 vendorW3 FirmwareW3

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Severity
HIGH8.8
Exploit prediction
EPSS 0.7%
SSVC
PoC

Description

A flaw has been found in Tenda W3 1.0.0.3(2204). This issue affects some unknown processing of the file /goform/wifiSSIDset of the component POST Parameter Handler. Executing a manipulation of the argument index/GO can lead to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been published and may be used.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (7)

VDB EntryTechnical DescriptionThird Party Advisory
Source: cverecord
https://vuldb.com/?id.350531
SignaturePermissions RequiredVDB Entry
Source: cverecord
https://vuldb.com/?ctiid.350531
Third Party AdvisoryVDB Entry
Source: cverecord
https://vuldb.com/?submit.769182
Third Party AdvisoryVDB Entry
Source: cverecord
https://vuldb.com/?submit.769183
RelatedExploitThird Party Advisory
Source: cverecord
https://github.com/Svigo-o/Tenda_vul/tree/main/tenda-w3-formwrlSSIDset-index-buffer-overflow
ExploitThird Party Advisory
Source: cverecord
https://github.com/Svigo-o/Tenda_vul/tree/main/tenda-w3-formwrlSSIDset-go-buffer-overflow
Product
Source: cverecord
https://www.tenda.com.cn/

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHVulDB
Vector?

Quick Info

StatusANALYZED
CWE
CWE-121CWE-119CWE-787

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