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CVE-2025-2796

Estado: AplazadaMedia (5.3)—

On affected platforms with hardware IPSec support running Arista EOS with IPsec enabled and anti-replay protection configured, EOS may exhibit unexpected behavior in specific cases. Received duplicate encrypted packets, which should be dropped under normal anti-replay protection, will instead be forwarded due to this vulnerability.

Note: this issue does not affect VXLANSec or MACSec encryption functionality.

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)

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

Arista — EOSAI

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2025-2796",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-2796",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-05-28T13:34:22.951770Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "psirt@arista.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "psirt@arista.com",
      "affectedData": [
        {
          "vendor": "Arista Networks",
          "product": "EOS",
          "versions": [
            {
              "status": "affected",
              "version": "4.33.0",
              "versionType": "custom",
              "lessThanOrEqual": "4.33.2F"
            }
          ],
          "platforms": [
            "EOS"
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2025-05-27T23:15:21.283",
  "references": [
    {
      "url": "https://www.arista.com/en/support/advisories-notices/security-advisory/21413-security-advisory-0119",
      "source": "psirt@arista.com"
    }
  ],
  "vulnStatus": "Deferred",
  "descriptions": [
    {
      "lang": "en",
      "value": "On affected platforms with hardware IPSec support running Arista EOS with IPsec enabled and anti-replay protection configured, EOS may exhibit unexpected behavior in specific cases. Received duplicate encrypted packets, which should be dropped under normal anti-replay protection, will instead be forwarded due to this vulnerability.\n\nNote: this issue does not affect VXLANSec or MACSec encryption functionality."
    },
    {
      "lang": "es",
      "value": "En las plataformas afectadas con compatibilidad de hardware IPSec y que ejecutan Arista EOS con IPsec habilitado y protección antirreproducción configurada, EOS puede presentar un comportamiento inesperado en casos específicos. Los paquetes cifrados duplicados recibidos, que deberían descartarse con la protección antirreproducción normal, se reenviarán debido a esta vulnerabilidad. Nota: Este problema no afecta la funcionalidad de cifrado de VXLANSec ni de MACSec."
    }
  ],
  "lastModified": "2026-06-17T09:07:38.017",
  "sourceIdentifier": "psirt@arista.com"
}