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CVE-2025-14942

Estado: AnalizadaCrítica (9.4)—

wolfSSH’s key exchange state machine can be manipulated to leak the client’s password in the clear, trick the client to send a bogus signature, or trick the client into skipping user authentication. This affects client applications with wolfSSH version 1.4.21 and earlier. Users of wolfSSH must update or apply the fix patch and it’s recommended to update credentials used. This fix is also recommended for wolfSSH server applications. While there aren’t any specific attacks on server applications, the same defect is present. Thanks to Aina Toky Rasoamanana of Valeo and Olivier Levillain of Telecom SudParis for the report.

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

UI:P requiere interacción del usuario (cliente SSH); CWE-287 (autenticación débil) permite obtener credenciales en claro, manipular autenticación o firmas. La vulnerabilidad afecta clientes SSH al manipular la máquina de estados del intercambio de claves.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

User Account ManagementPrivileged Account ManagementPassword PoliciesMulti-factor AuthenticationApplication Developer GuidanceActive Directory Configuration

Tecnologías afectadas (1)

Wolfssh — Wolfssh

CWE

Referencias

JSON original (NVD)

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          "options": [
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  "published": "2026-01-06T18:15:42.257",
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      "url": "https://github.com/wolfSSL/wolfssh/pull/855",
      "tags": [
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "description": [
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          "value": "CWE-287"
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  "descriptions": [
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      "value": "wolfSSH’s key exchange state machine can be manipulated to leak the client’s password in the clear, trick the client to send a bogus signature, or trick the client into skipping user authentication. This affects client applications with wolfSSH version 1.4.21 and earlier. Users of wolfSSH must update or apply the fix patch and it’s recommended to update credentials used. This fix is also recommended for wolfSSH server applications. While there aren’t any specific attacks on server applications, the same defect is present. Thanks to Aina Toky Rasoamanana of Valeo and Olivier Levillain of Telecom SudParis for the report."
    },
    {
      "lang": "es",
      "value": "La máquina de estados de intercambio de claves de wolfSSH puede ser manipulada para filtrar la contraseña del cliente en texto claro, engañar al cliente para que envíe una firma falsa, o engañar al cliente para que omita la autenticación de usuario. Esto afecta a las aplicaciones cliente con wolfSSH versión 1.4.21 y anteriores. Los usuarios de wolfSSH deben actualizar o aplicar el parche de corrección y se recomienda actualizar las credenciales utilizadas. Esta corrección también se recomienda para las aplicaciones servidor de wolfSSH. Aunque no hay ataques específicos en las aplicaciones servidor, el mismo defecto está presente. Gracias a Aina Toky Rasoamanana de Valeo y Olivier Levillain de Telecom SudParis por el informe."
    }
  ],
  "lastModified": "2026-09-30T22:10:00.273",
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}