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CVE-2021-28504

Estado: ModificadaAlta (7.5)—

On Arista Strata family products which have “TCAM profile” feature enabled when Port IPv4 access-list has a rule which matches on “vxlan” as protocol then that rule and subsequent rules ( rules declared after it in ACL ) do not match on IP protocol field as expected.

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)

Arista — EOS

CWE

Referencias

JSON original (NVD)

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        "source": "nvd@nist.gov",
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          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
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        "impactScore": 2.9,
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  "published": "2022-04-01T23:15:09.380",
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      "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/15267-security-advisory-0073",
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        "Vendor Advisory"
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  "vulnStatus": "Modified",
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    },
    {
      "lang": "es",
      "value": "En los productos de la familia Arista Strata que tienen habilitada la funcionalidad \"perfil TCAM\", cuando la lista de acceso IPv4 del puerto presenta una regla que coincide con \"vxlan\" como protocolo, esa regla y las reglas posteriores (reglas declaradas después de ella en la ACL) no coinciden con el campo de protocolo IP como era esperado"
    }
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  "lastModified": "2026-06-17T03:46:28.803",
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