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CVE-2021-20314

Estado: ModificadaCrítica (9.8)—

Stack buffer overflow in libspf2 versions below 1.2.11 when processing certain SPF macros can lead to Denial of service and potentially code execution via malicious crafted SPF explanation messages.

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 (3)

Fedoraproject — FedoraLibspf2 — Libspf2Redhat — Enterprise Linux

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2021-20314",
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          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
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        "acInsufInfo": false,
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  "affected": [
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      "affectedData": [
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          "vendor": "n/a",
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  "vulnStatus": "Modified",
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      "description": [
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          "value": "CWE-787"
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  "descriptions": [
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      "value": "Stack buffer overflow in libspf2 versions below 1.2.11 when processing certain SPF macros can lead to Denial of service and potentially code execution via malicious crafted SPF explanation messages."
    },
    {
      "lang": "es",
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    }
  ],
  "lastModified": "2026-06-17T03:33:39.413",
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