CVE-2026-3972

HIGH 8.8

Tenda W3 HTTP setcfm formSetCfm stack-based overflow

CVSS Score

8.8

EPSS Score

0.0%

EPSS Percentile

0th

A vulnerability was found in Tenda W3 1.0.0.3(2204). Affected by this issue is the function formSetCfm of the file /goform/setcfm of the component HTTP Handler. The manipulation of the argument funcpara1 results in stack-based buffer overflow. The attack can only be performed from the local network. The exploit has been made public and could be used.

CWE	CWE-121 CWE-119
Vendor	tenda
Product	w3
Published	Mar 12, 2026
Last Updated	Mar 12, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

Tenda / W3

1.0.0.3(2204)

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/?id.350407 vuldb.com: https://vuldb.com/?ctiid.350407 vuldb.com: https://vuldb.com/?submit.769172 github.com: https://github.com/Svigo-o/Tenda_vul/tree/main/tenda-w3-setcfm-funcpara1-buffer-overflow tenda.com.cn: https://www.tenda.com.cn/

Credits

🔍 Svigo_o (VulDB User)