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CVE-2021-34980

Estado: ModificadaAlta (8.8)—

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6260 1.1.0.78_1.0.1 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the setupwizard.cgi page. When parsing the SOAP_LOGIN_TOKEN environment variable, the process does not properly validate the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-14107.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Netgear — R6260 Firmware

CWE

Referencias

JSON original (NVD)

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          "vectorString": "AV:A/AC:L/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
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  "published": "2022-01-13T22:15:12.767",
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  "vulnStatus": "Modified",
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      "description": [
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          "value": "CWE-787"
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      "value": "This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6260 1.1.0.78_1.0.1 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the setupwizard.cgi page. When parsing the SOAP_LOGIN_TOKEN environment variable, the process does not properly validate the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-14107."
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      "value": "Esta vulnerabilidad permite a atacantes adyacentes a la red ejecutar código arbitrario en las instalaciones afectadas de los routers NETGEAR R6260 versión 1.1.0.78_1.0.1. No es requerida una autenticación  para explotar esta vulnerabilidad. El fallo específico se presenta en la página setupwizard.cgi. Cuando es analizada la variable de entorno SOAP_LOGIN_TOKEN, el proceso no comprueba correctamente la longitud de los datos suministrados por el usuario antes de copiarlos en un búfer de longitud fija en la región stack de la memoria. Un atacante puede aprovechar esta vulnerabilidad para ejecutar código en el contexto de root. Fue ZDI-CAN-14107"
    }
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  "lastModified": "2026-06-17T03:56:55.517",
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