CVE-2025-12241

A vulnerability was detected in TOTOLINK A3300R 17.0.0cu.557_B20221024. This impacts the function setLanguageCfg of the file /cgi-bin/cstecgi.cgi of the component POST Parameter Handler. The manipulation of the argument lang results in stack-based buffer overflow. It is possible to launch the attack remotely. The exploit is now 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/noahze01/IoT-vulnerable/blob/main/TOTOLink/A3300R/setLanguageCfg.md	Exploit Third Party Advisory
https://vuldb.com/?ctiid.329911	Permissions Required VDB Entry
https://vuldb.com/?id.329911	Third Party Advisory VDB Entry
https://vuldb.com/?submit.673723	Third Party Advisory VDB Entry
https://www.totolink.net/	Product

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:totolink:a3300r_firmware:17.0.0cu.557_b20221024:*:*:*:*:*:*:*

cpe:2.3:h:totolink:a3300r:-:*:*:*:*:*:*:*

History

08 Oct 2026, 11:10

Type	Values Removed	Values Added
Summary		(es) Se detectó una vulnerabilidad en TOTOLINK A3300R 17.0.0cu.557_B20221024. Esto afecta a la función setLanguageCfg del archivo /cgi-bin/cstecgi.cgi del componente Gestor de Parámetros POST. La manipulación del argumento lang resulta en desbordamiento de búfer basado en pila. Es posible lanzar el ataque remotamente. El exploit ahora es público y puede ser utilizado.

Information

Published : 2025-10-27 07:15

Updated : 2026-10-08 11:10

NVD link : CVE-2025-12241

Mitre link : CVE-2025-12241

CVE.ORG link : CVE-2025-12241

JSON object : View

Products Affected

totolink

a3300r_firmware
a3300r

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-121

Stack-based Buffer Overflow

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This impacts the function setLanguageCfg of the file /cgi-bin/cstecgi.cgi of the component POST Parameter Handler. The manipulation of the argument lang results in stack-based buffer overflow. It is possible to launch the attack remotely. The exploit is now public and may be used."}, {"lang": "es", "value": "Se detect\u00f3 una vulnerabilidad en TOTOLINK A3300R 17.0.0cu.557_B20221024. Esto afecta a la funci\u00f3n setLanguageCfg del archivo /cgi-bin/cstecgi.cgi del componente Gestor de Par\u00e1metros POST. La manipulaci\u00f3n del argumento lang resulta en desbordamiento de b\u00fafer basado en pila. Es posible lanzar el ataque remotamente. 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