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CVE-2019-18928

Estado: ModificadaCrítica (9.8)—

Cyrus IMAP 2.5.x before 2.5.14 and 3.x before 3.0.12 allows privilege escalation because an HTTP request may be interpreted in the authentication context of an unrelated previous request that arrived over the same connection.

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)

Cyrus — ImapDebian — Debian LinuxFedoraproject — Fedora

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2019-18928",
  "cveTags": [],
  "metrics": {
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      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
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        "type": "Primary",
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          "version": "3.1",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
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      ]
    }
  ],
  "published": "2019-11-15T04:15:10.267",
  "references": [
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      "url": "https://lists.debian.org/debian-lts-announce/2022/06/msg00013.html",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
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    },
    {
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      "source": "cve@mitre.org"
    },
    {
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      "source": "cve@mitre.org"
    },
    {
      "url": "https://www.cyrusimap.org/imap/download/release-notes/2.5/x/2.5.14.html",
      "tags": [
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        "Release Notes",
        "Third Party Advisory"
      ],
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    },
    {
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        "Release Notes",
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    },
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    },
    {
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "tags": [
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        "Release Notes",
        "Third Party Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "https://www.cyrusimap.org/imap/download/release-notes/3.0/x/3.0.12.html",
      "tags": [
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        "Release Notes",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Cyrus IMAP 2.5.x before 2.5.14 and 3.x before 3.0.12 allows privilege escalation because an HTTP request may be interpreted in the authentication context of an unrelated previous request that arrived over the same connection."
    },
    {
      "lang": "es",
      "value": "Cyrus IMAP versiones 2.5.x anteriores a la versión 2.5.14 y versiones 3.x anteriores a la versión 3.0.12, permite una escalada de privilegios porque una petición HTTP puede ser interpretada en el contexto de autenticación de una petición anterior no relacionada que llegó por medio de la misma conexión."
    }
  ],
  "lastModified": "2026-06-17T02:25:35.497",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "vulnerable": true,
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              "versionEndExcluding": "2.5.14",
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            },
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              "versionEndExcluding": "3.0.12",
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  "sourceIdentifier": "cve@mitre.org"
}