CVE-2026-3976 - Vulnerability Analysis

Overview

Tenda W3 1.0.0.3(2204) contains a stack-based buffer overflow caused by manipulation of the index/GO argument in /goform/WifiMacFilterSet POST Parameter Handler, letting remote attackers execute code, exploit requires crafted request.

Severity & Score

Impact

Remote attackers can execute arbitrary code, potentially leading to full system compromise.

Mitigation

Update to the latest version.

References

• https://github.com/Svigo-o/Tenda_vul/tree/main/tenda-w3-formWifiMacFilterSet-go-buffer-overflow
• https://github.com/Svigo-o/Tenda_vul/tree/main/tenda-w3-formWifiMacFilterSet-index-buffer-overflow
• https://vuldb.com/?ctiid.350411
• https://vuldb.com/?id.350411
• https://vuldb.com/?submit.769179
• https://vuldb.com/?submit.769180
• https://www.tenda.com.cn/

Social Media Activity(1 post)

TheHackerWire

@thehackerwire

Mar 12, 2026

🟠 CVE-2026-3976 - High (8.8) A weakness has been identified in Tenda W3 1.0.0.3(2204). Impacted is the function formWifiMacFilterSet of the file /goform/WifiMacFilterSet of the component POST Parameter Handler. Executing a manipulation of the argument index/GO can lead to sta... 🔗 https://www.thehackerwire.com/vulnerability/CVE-2026-3976/ #CVE #vulnerability #infosec #cybersecurity #security #Tenda #patchstack

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