CVE-2025-6188

Estado: AplazadaAlta (7.5)—

On affected platforms running Arista EOS, maliciously formed UDP packets with source port 3503 may be accepted by EOS. UDP Port 3503 is associated with LspPing Echo Reply. This can result in unexpected behaviors, especially for UDP based services that do not perform some form of authentication.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Puntuación base: 7.5

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.42%
Percentil entre todas las CVEs puntuadas: 34
Fecha de la puntuación: 5/10/2026

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 principalT1078 Valid Accountsstealth · persistence · privilege escalation · initial access70 %
Impacto secundarioT1565.002 Transmitted Data Manipulationimpact65 %

AV:N/AC:L/PR:N/UI:N indica red sin autenticación (T1190). Aceptar paquetes UDP malformados sin autenticación permite suplantación de identidad (T1078) y manipulación de datos (CWE-290: impersonation/UDP spoofing).

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

Privileged Account Management Application Developer Guidance Active Directory Configuration Vulnerability Scanning User Training User Account Management

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-290

Referencias

https://www.arista.com/en/support/advisories-notices/security-advisory/22021-security-advisory-0121

JSON original (NVD)

Mostrar

{
  "id": "CVE-2025-6188",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-6188",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-08-26T19:56:57.303610Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "psirt@arista.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "psirt@arista.com",
      "affectedData": [
        {
          "vendor": "Arista Networks",
          "product": "EOS",
          "versions": [
            {
              "status": "affected",
              "version": "4.33.0",
              "versionType": "custom",
              "lessThanOrEqual": "4.33.1F"
            },
            {
              "status": "affected",
              "version": "4.33.1.0",
              "versionType": "custom",
              "lessThanOrEqual": "4.33.1.2F"
            },
            {
              "status": "affected",
              "version": "4.32.4.0",
              "versionType": "custom",
              "lessThanOrEqual": "4.32.4.1M"
            },
            {
              "status": "affected",
              "version": "4.31.0",
              "versionType": "custom",
              "lessThanOrEqual": "4.31.6M"
            },
            {
              "status": "affected",
              "version": "4.30.0",
              "versionType": "custom",
              "lessThanOrEqual": "4.30.9.1M"
            }
          ],
          "platforms": [
            "EOS"
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2025-08-25T21:15:38.500",
  "references": [
    {
      "url": "https://www.arista.com/en/support/advisories-notices/security-advisory/22021-security-advisory-0121",
      "source": "psirt@arista.com"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "description": [
        {
          "lang": "en",
          "value": "CWE-290"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "On affected platforms running Arista EOS, maliciously formed UDP packets with source port 3503 may be accepted by EOS. UDP Port 3503 is associated with LspPing Echo Reply. This can result in unexpected behaviors, especially for UDP based services that do not perform some form of authentication."
    },
    {
      "lang": "es",
      "value": "En las plataformas afectadas que ejecutan Arista EOS, EOS podría aceptar paquetes UDP maliciosos con el puerto de origen 3503. El puerto UDP 3503 está asociado con la respuesta de eco de LspPing. Esto puede provocar comportamientos inesperados, especialmente en servicios basados en UDP que no realizan ningún tipo de autenticación."
    }
  ],
  "lastModified": "2026-06-17T10:01:20.970",
  "sourceIdentifier": "psirt@arista.com"
}