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CVE-2021-32567

Estado: ModificadaAlta (7.5)—

Improper Input Validation vulnerability in HTTP/2 of Apache Traffic Server allows an attacker to DOS the server. This issue affects Apache Traffic Server 7.0.0 to 7.1.12, 8.0.0 to 8.1.1, 9.0.0 to 9.0.1.

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 (2)

Apache — Traffic ServerDebian — Debian Linux

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2021-32567",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
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        "acInsufInfo": false,
        "impactScore": 2.9,
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        "obtainAllPrivilege": false,
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          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
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          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
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        "impactScore": 3.6,
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  "affected": [
    {
      "source": "security@apache.org",
      "affectedData": [
        {
          "vendor": "Apache Software Foundation",
          "product": "Apache Traffic Server",
          "versions": [
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              "status": "affected",
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  "published": "2021-06-30T08:15:06.857",
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  "vulnStatus": "Modified",
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      "type": "Secondary",
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  "descriptions": [
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      "value": "Improper Input Validation vulnerability in HTTP/2 of Apache Traffic Server allows an attacker to DOS the server. This issue affects Apache Traffic Server 7.0.0 to 7.1.12, 8.0.0 to 8.1.1, 9.0.0 to 9.0.1."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de comprobación inapropiada de entrada  en HTTP/2 de Apache Traffic Server, permite a un atacante realizar un DOS en el servidor. Este problema afecta a Apache Traffic Server versiones 7.0.0 hasta 7.1.12, versiones 8.0.0 hasta 8.1.1, versiones 9.0.0 hasta 9.0.1"
    }
  ],
  "lastModified": "2026-06-17T03:53:11.240",
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