CVE-2025-7421

A vulnerability was found in Tenda O3V2 1.0.0.12(3880). It has been rated as critical. This issue affects the function fromMacFilterModify of the file /goform/operateMacFilter of the component httpd. The manipulation of the argument mac leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

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/wudipjq/my_vuln/blob/main/Tenda3/vuln_54/54.md	Exploit Third Party Advisory
https://github.com/wudipjq/my_vuln/blob/main/Tenda3/vuln_54/54.md#poc	Exploit Third Party Advisory
https://vuldb.com/?ctiid.315881	Permissions Required
https://vuldb.com/?id.315881	Third Party Advisory VDB Entry
https://vuldb.com/?submit.608867	Third Party Advisory VDB Entry
https://www.tenda.com.cn/	Product
https://github.com/wudipjq/my_vuln/blob/main/Tenda3/vuln_54/54.md	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:tenda:o3_firmware:1.0.0.12\(3880\):*:*:*:*:*:*:*

cpe:2.3:h:tenda:o3:2.0:*:*:*:*:*:*:*

History

16 Jul 2025, 16:43

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-07-11 01:15

Updated : 2025-07-16 16:43

NVD link : CVE-2025-7421

Mitre link : CVE-2025-7421

CVE.ORG link : CVE-2025-7421

JSON object : View

Products Affected

tenda

o3_firmware
o3

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-121

Stack-based Buffer Overflow

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It has been rated as critical. This issue affects the function fromMacFilterModify of the file /goform/operateMacFilter of the component httpd. The manipulation of the argument mac leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used."}, {"lang": "es", "value": "Se encontr\u00f3 una vulnerabilidad en Tenda O3V2 1.0.0.12(3880). Se ha clasificado como cr\u00edtica. Este problema afecta a la funci\u00f3n fromMacFilterModify del archivo /goform/operateMacFilter del componente httpd. La manipulaci\u00f3n del argumento mac provoca un desbordamiento del b\u00fafer basado en la pila. El ataque puede ejecutarse en remoto. Se ha hecho p\u00fablico el exploit y puede que sea utilizado."}], "lastModified": "2025-07-16T16:43:48.833", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:tenda:o3_firmware:1.0.0.12\\(3880\\):*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B3400297-D819-4426-9BF1-9E98EF058A81"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:tenda:o3:2.0:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "9EFCDEA6-622C-4CA1-AC0F-3828C6CA3C16"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "cna@vuldb.com"}