How serious is CVE-2026-4007?

This vulnerability has a CVSS score of 7.4 out of 10, classified as HIGH severity. Proof-of-concept exploit code is publicly available, making this an active threat.

Is there exploit code available for CVE-2026-4007?

Yes, proof-of-concept exploit code for CVE-2026-4007 is publicly available on GitHub and security research platforms. This increases the risk of active exploitation.

Which products are affected by CVE-2026-4007?

Check the official CVE details for a complete list of affected products and versions.

How do I fix CVE-2026-4007?

To remediate CVE-2026-4007, check for security patches from the vendor. Apply all available updates and security patches. If no patch is available, implement recommended workarounds or security controls to mitigate the risk.

CVE-2026-4007

High

|7.4

Exploit Available

Plain English Summary

AI-powered analysis for quick understanding

This vulnerability allows an attacker to remotely execute malicious code on the Tenda W3 router by exploiting a flaw in how it handles certain data, which can lead to a stack-based buffer overflow. The attack can be carried out without any special access, making it a significant risk for anyone using this router model.

Technical Description

A vulnerability was detected in Tenda W3 1.0.0.3(2204). This vulnerability affects unknown code of the file /goform/wifiSSIDget of the component POST Parameter Handler. Performing a manipulation of the argument index results in stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit is now public and may be used.

CVSS Vector Analysis

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

Confidentiality ImpactHigh

Integrity ImpactHigh

Availability ImpactHigh

ScopeChanged

Vector String

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Exploit Resources

Search for proof-of-concept code and exploit modules

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Official References

NIST NVD

Est. Bounty

$1,842($1K-$5K)

Vendor Response

Grade APatched in 0 days

Quick Information

Published

Mar 12, 2026

27 days ago

Last Modified

Mar 12, 2026

26 days ago