FKIE_CVE-2025-2796

Vulnerability from fkie_nvd - Published: 2025-05-27 23:15 - Updated: 2026-06-17 09:07
Severity
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Summary
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.
References
psirt@arista.comhttps://www.arista.com/en/support/advisories-notices/security-advisory/21413-security-advisory-0119
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "EOS"
          ],
          "product": "EOS",
          "vendor": "Arista Networks",
          "versions": [
            {
              "lessThanOrEqual": "4.33.2F",
              "status": "affected",
              "version": "4.33.0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "psirt@arista.com"
    }
  ],
  "cveTags": [],
  "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 protecci\u00f3n antirreproducci\u00f3n configurada, EOS puede presentar un comportamiento inesperado en casos espec\u00edficos. Los paquetes cifrados duplicados recibidos, que deber\u00edan descartarse con la protecci\u00f3n antirreproducci\u00f3n normal, se reenviar\u00e1n debido a esta vulnerabilidad. Nota: Este problema no afecta la funcionalidad de cifrado de VXLANSec ni de MACSec."
    }
  ],
  "id": "CVE-2025-2796",
  "lastModified": "2026-06-17T09:07:38.017",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4,
        "source": "psirt@arista.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-2796",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-05-28T13:34:22.951770Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-05-27T23:15:21.283",
  "references": [
    {
      "source": "psirt@arista.com",
      "url": "https://www.arista.com/en/support/advisories-notices/security-advisory/21413-security-advisory-0119"
    }
  ],
  "sourceIdentifier": "psirt@arista.com",
  "vulnStatus": "Deferred"
}


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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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