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7.4
Tenda W3 Router: Remote Attack Possible Through Malformed Network Request
CVE-2026-3975
Summary
A bug in the Tenda W3 router's settings feature allows a hacker to potentially access and control the device remotely. This could let them disrupt or steal data from your network. Update your router's software to the latest version to fix this issue.
Original title
A security flaw has been discovered in Tenda W3 1.0.0.3(2204). This issue affects the function formWifiMacFilterGet of the file /goform/WifiMacFilterGet of the component POST Parameter Handler. Per...
Original description
A security flaw has been discovered in Tenda W3 1.0.0.3(2204). This issue affects the function formWifiMacFilterGet of the file /goform/WifiMacFilterGet of the component POST Parameter Handler. Performing a manipulation of the argument wl_radio results in stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been released to the public and may be used for attacks.
nvd CVSS2.0
9.0
nvd CVSS3.1
8.8
nvd CVSS4.0
7.4
Vulnerability type
CWE-119
Buffer Overflow
CWE-121
Stack-based Buffer Overflow
Published: 12 Mar 2026 · Updated: 14 Mar 2026 · First seen: 12 Mar 2026