CVE-2024-12378

Estado: AplazadaCrítica (9.1)—

On affected platforms running Arista EOS with secure Vxlan configured, restarting the Tunnelsec agent will result in packets being sent over the secure Vxlan tunnels in the clear.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Puntuación base: 9.1

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.50%
Percentil entre todas las CVEs puntuadas: 41
Fecha de la puntuación: 6/10/2026

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.

ExplotaciónT1190 Exploit Public-Facing Applicationinitial access85 %
Impacto principalT1040 Network Sniffingcredential access · discovery80 %
Impacto secundarioT1557.002 ARP Cache Poisoningcredential access · collection75 %

Red sin privilegios (AV:N, PR:N, UI:N); acceso remoto a tráfico en claro en túneles Vxlan tras reinicio del agente. Impactos: captura de tráfico (T1040) y potencial MITM/intercepción (T1557.002) por exposición de datos confidenciales cifrados.

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

Network Segmentation Limit Access to Resource Over Network Filter Network Traffic Encrypt Sensitive Information Vulnerability Scanning User Training

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Arista — EOS^AI

CWE

CWE-319

Referencias

https://www.arista.com/en/support/advisories-notices/security-advisory/21289-security-advisory-0113

JSON original (NVD)

Mostrar

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  "id": "CVE-2024-12378",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-12378",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-05-08T19:16:38.893940Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "psirt@arista.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 9.1,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.2,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "psirt@arista.com",
      "affectedData": [
        {
          "vendor": "Arista Networks",
          "product": "CloudVision Portal",
          "versions": [
            {
              "status": "affected",
              "version": "4.32.0",
              "versionType": "custom",
              "lessThanOrEqual": "4.32.2F"
            },
            {
              "status": "affected",
              "version": "4.31.0",
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              "lessThanOrEqual": "4.31.6M"
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              "status": "affected",
              "version": "4.30.0",
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            {
              "status": "affected",
              "version": "4.29.0",
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              "lessThanOrEqual": "4.29.9M"
            },
            {
              "status": "affected",
              "version": "4.28.0",
              "versionType": "custom",
              "lessThanOrEqual": "4.28.12M"
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              "version": "4.27.0",
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  "published": "2025-05-08T19:15:57.320",
  "references": [
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      "url": "https://www.arista.com/en/support/advisories-notices/security-advisory/21289-security-advisory-0113",
      "source": "psirt@arista.com"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "psirt@arista.com",
      "description": [
        {
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          "value": "CWE-319"
        }
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "On affected platforms running Arista EOS with secure Vxlan configured, restarting the Tunnelsec agent will result in packets being sent over the secure Vxlan tunnels in the clear."
    },
    {
      "lang": "es",
      "value": "En las plataformas afectadas que ejecutan Arista EOS con Vxlan seguro configurado, reiniciar el agente Tunnelsec hará que los paquetes se envíen a través de los túneles Vxlan seguros sin cifrado."
    }
  ],
  "lastModified": "2026-06-17T06:59:36.460",
  "sourceIdentifier": "psirt@arista.com"
}