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CVE-2021-36093

Estado: ModificadaMedia (5.3)—

It's possible to create an email which can be stuck while being processed by PostMaster filters, causing DoS. This issue affects: OTRS AG ((OTRS)) Community Edition 6.0.x version 6.0.1 and later versions. OTRS AG OTRS 7.0.x version 7.0.28 and prior versions; 8.0.x version 8.0.15 and prior versions.

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)

Otrs — Otrs

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-36093",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "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"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security@otrs.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "LOW",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 3.9
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "LOW",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "security@otrs.com",
      "affectedData": [
        {
          "vendor": "OTRS AG",
          "product": "((OTRS)) Community Edition",
          "versions": [
            {
              "status": "affected",
              "version": "6.0.1",
              "lessThan": "6.0.x*",
              "versionType": "custom"
            }
          ]
        },
        {
          "vendor": "OTRS AG",
          "product": "OTRS",
          "versions": [
            {
              "status": "affected",
              "version": "7.0.x",
              "versionType": "custom",
              "lessThanOrEqual": "7.0.28"
            },
            {
              "status": "affected",
              "version": "8.0.x",
              "versionType": "custom",
              "lessThanOrEqual": "8.0.15"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-09-06T14:15:07.197",
  "references": [
    {
      "url": "https://otrs.com/release-notes/otrs-security-advisory-2021-16/",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "security@otrs.com"
    },
    {
      "url": "https://otrs.com/release-notes/otrs-security-advisory-2021-16/",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security@otrs.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-185"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "It's possible to create an email which can be stuck while being processed by PostMaster filters, causing DoS. This issue affects: OTRS AG ((OTRS)) Community Edition 6.0.x version 6.0.1 and later versions. OTRS AG OTRS 7.0.x version 7.0.28 and prior versions; 8.0.x version 8.0.15 and prior versions."
    },
    {
      "lang": "es",
      "value": "Es posible crear un correo electrónico que puede atascarse mientras es procesado por los filtros PostMaster, causando DoS. Este problema afecta a: OTRS AG ((OTRS)) Community Edition versión 6.0.x, versión 6.0.1 y versiones posteriores. OTRS AG OTRS versión 7.0.x, versión 7.0.28 y versiones anteriores; versión 8.0.x, versión 8.0.15 y versiones anteriores."
    }
  ],
  "lastModified": "2026-06-17T03:58:22.020",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:otrs:otrs:*:*:*:*:community:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "3B2D503B-661B-43EC-9902-D0613A037AA4",
              "versionStartIncluding": "6.0.1"
            },
            {
              "criteria": "cpe:2.3:a:otrs:otrs:*:*:*:*:-:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "336DCF0F-236B-46A0-A112-A201F9B6014D",
              "versionEndExcluding": "7.0.29",
              "versionStartIncluding": "7.0.0"
            },
            {
              "criteria": "cpe:2.3:a:otrs:otrs:*:*:*:*:-:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "48EBDE7F-60BB-4F61-9042-8FF68EF728A6",
              "versionEndExcluding": "8.0.16",
              "versionStartIncluding": "8.0.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@otrs.com"
}