CVE-2026-3976

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 v3 8.8 HIGH
CVSS v2.0 9.0 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

9.0^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:S/C:C/I:C/A:C

Exploitability : 8.0 / Impact : 10.0

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://github.com/Svigo-o/Tenda_vul/tree/main/tenda-w3-formWifiMacFilterSet-go-buffer-overflow	Exploit Third Party Advisory
https://github.com/Svigo-o/Tenda_vul/tree/main/tenda-w3-formWifiMacFilterSet-index-buffer-overflow	Exploit Third Party Advisory
https://vuldb.com/?ctiid.350411	Permissions Required VDB Entry
https://vuldb.com/?id.350411	Third Party Advisory VDB Entry
https://vuldb.com/?submit.769179	Third Party Advisory VDB Entry
https://vuldb.com/?submit.769180	Third Party Advisory VDB Entry
https://www.tenda.com.cn/	Product

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:tenda:w3_firmware:1.0.0.3\(2204\):*:*:*:*:*:*:*

cpe:2.3:h:tenda:w3:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-03-12 03:15

Updated : 2026-06-17 10:44

NVD link : CVE-2026-3976

Mitre link : CVE-2026-3976

CVE.ORG link : CVE-2026-3976

JSON object : View

Products Affected

tenda

w3_firmware
w3

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-121

Stack-based Buffer Overflow

CWE-787

Out-of-bounds Write

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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."}, {"lang": "es", "value": "Una debilidad ha sido identificada en Tenda W3 1.0.0.3(2204). Afectada est\u00e1 la funci\u00f3n formWifiMacFilterSet del archivo /goform/WifiMacFilterSet del componente Gestor de Par\u00e1metros POST. Ejecutar una manipulaci\u00f3n del argumento index/GO puede llevar a un desbordamiento de b\u00fafer basado en pila. Es posible lanzar el ataque de forma remota. El exploit ha sido puesto a disposici\u00f3n del p\u00fablico y podr\u00eda ser usado para ataques."}], "lastModified": "2026-06-17T10:44:33.137", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:tenda:w3_firmware:1.0.0.3\\(2204\\):*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F7C71B75-3813-4243-B6A3-8B44102303AA"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:tenda:w3:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "89FA4ED8-CE8A-4A77-9A71-D99871B76EA3"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "cna@vuldb.com"}