CVE-2026-3976

CWE-119 — Buffer OverflowCWE-121 — Stack-based Buffer OverflowCWE-787 — Out-of-bounds Write3 documents3 sources
Severity
7.4HIGH
EPSS
0.1%
top 73.41%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Tenda W3Tenda W3 Firmware
Timeline
PublishedMar 12

Description

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 stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been made available to the public and could be used for attacks.

CVSS vector

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

Affected Packages2 packages

▶CVEListV5tenda/w31.0.0.3(2204)
▶NVDtenda/w3_firmware1.0.0.3\(2204\)

🔴Vulnerability Details

2
CVEList
Tenda W3 POST Parameter WifiMacFilterSet formWifiMacFilterSet stack-based overflow↗2026-03-12
▶
GHSA
GHSA-956f-fcv4-hgpq: A weakness has been identified in Tenda W3 1↗2026-03-12
▶