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CVE-2026-3976— Tenda W3 POST Parameter WifiMacFilterSet formWifiMacFilterSet stack-based overflow

CVSS 8.8 · High EPSS 0.10% · P26
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I. Basic Information for CVE-2026-3976

Vulnerability Information
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Vulnerability Title
Tenda W3 POST Parameter WifiMacFilterSet formWifiMacFilterSet stack-based overflow
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
栈缓冲区溢出
Source: NVD (National Vulnerability Database)
Vulnerability Title
Tenda W3 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tenda W3是中国腾达（Tenda）公司的一个无线接入点设备。 Tenda W3 1.0.0.3(2204)版本存在安全漏洞，该漏洞源于对文件/goform/WifiMacFilterSet中参数index/GO的错误操作，可能导致栈缓冲区溢出。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
TendaW3 1.0.0.3(2204) -

II. Public POCs for CVE-2026-3976

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III. Intelligence Information for CVE-2026-3976

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Same Patch Batch · Tenda · 2026-03-12 · 12 CVEs total

CVE-2026-40438.8 HIGHTenda i12 wifiSSIDget formwrlSSIDget stack-based overflow
CVE-2026-40428.8 HIGHTenda i12 WifiMacFilterGet formWifiMacFilterGet stack-based overflow
CVE-2026-40418.8 HIGHTenda i12 exeCommand vos_strcpy stack-based overflow
CVE-2026-40088.8 HIGHTenda W3 POST Parameter wifiSSIDset stack-based overflow
CVE-2026-40078.8 HIGHTenda W3 POST Parameter wifiSSIDget stack-based overflow
CVE-2026-39758.8 HIGHTenda W3 POST Parameter WifiMacFilterGet formWifiMacFilterGet stack-based overflow
CVE-2026-39748.8 HIGHTenda W3 HTTP exeCommand formexeCommand stack-based overflow
CVE-2026-39738.8 HIGHTenda W3 POST Parameter setAutoPing formSetAutoPing stack-based overflow
CVE-2026-39728.8 HIGHTenda W3 HTTP setcfm formSetCfm stack-based overflow
CVE-2026-39718.8 HIGHTenda i3 wifiSSIDset formwrlSSIDset stack-based overflow
CVE-2026-39708.8 HIGHTenda i3 wifiSSIDget formwrlSSIDget stack-based overflow

IV. Related Vulnerabilities

Same product: W3
Same vendor: Tenda
Same weakness: CWE-121

V. Comments for CVE-2026-3976

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