CVE-2026-3974 - Vulnerability Analysis

Overview

Tenda W3 1.0.0.3(2204) contains a buffer overflow caused by improper handling of the "cmdinput" argument in /goform/exeCommand HTTP Handler, letting remote attackers execute arbitrary code, exploit requires remote access.

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-formexeCommand-cmdinput-buffer-overflow
• https://vuldb.com/?ctiid.350409
• https://vuldb.com/?id.350409
• https://vuldb.com/?submit.769177
• https://www.tenda.com.cn/

Social Media Activity(1 post)

TheHackerWire

@thehackerwire

Mar 12, 2026

🟠 CVE-2026-3974 - High (8.8) A vulnerability was identified in Tenda W3 1.0.0.3(2204). This vulnerability affects the function formexeCommand of the file /goform/exeCommand of the component HTTP Handler. Such manipulation of the argument cmdinput leads to stack-based buffer o... 🔗 https://www.thehackerwire.com/vulnerability/CVE-2026-3974/ #CVE #vulnerability #infosec #cybersecurity #security #Tenda #patchstack

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