CVE-2025-12211

A security flaw has been discovered in Tenda O3 1.0.0.10(2478). Affected by this issue is the function SetValue/GetValue of the file /goform/setDmzInfo. The manipulation of the argument dmzIP results in stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been released to the public and may 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/noahze01/IoT-vulnerable/blob/main/Tenda/O3v2.0/setDmzInfo.md	Exploit Third Party Advisory
https://vuldb.com/?ctiid.329881	Permissions Required VDB Entry
https://vuldb.com/?id.329881	Third Party Advisory VDB Entry
https://vuldb.com/?submit.673265	Third Party Advisory VDB Entry
https://www.tenda.com.cn/	Product
https://github.com/noahze01/IoT-vulnerable/blob/main/Tenda/O3v2.0/setDmzInfo.md	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:tenda:o3_firmware1.0.0.10\(2478\):*:*:*:*:*:*:*:*

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

History

08 Oct 2026, 11:10

Type	Values Removed	Values Added
Summary		(es) Se ha descubierto una falla de seguridad en Tenda O3 1.0.0.10(2478). Afectada por este problema está la función SetValue/GetValue del archivo /goform/setDmzInfo. La manipulación del argumento dmzIP resulta en un desbordamiento de búfer basado en pila. Es posible lanzar el ataque remotamente. El exploit ha sido publicado y puede ser usado para ataques.

Information

Published : 2025-10-27 04:15

Updated : 2026-10-08 11:10

NVD link : CVE-2025-12211

Mitre link : CVE-2025-12211

CVE.ORG link : CVE-2025-12211

JSON object : View

Products Affected

tenda

o3
o3_firmware1.0.0.10\(2478\)

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-121

Stack-based Buffer Overflow

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