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CVE-2020-4446

Status: ModifiedMedium (4.3)—

IBM Business Process Manager 8.0, 8.5, and 8.6 and IBM Business Automation Workflow 18.0 and 19.0 could allow a remote attacker to bypass security restrictions, caused by the failure to perform insufficient authorization checks. IBM X-Force ID: 181126.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (2)

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2020-4446",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:N/A:N",
          "authentication": "SINGLE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Secondary",
        "source": "psirt@us.ibm.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 4.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 2.8
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 4.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "psirt@us.ibm.com",
      "affectedData": [
        {
          "vendor": "IBM",
          "product": "Business Process Manager Standard",
          "versions": [
            {
              "status": "affected",
              "version": "8.5.5"
            },
            {
              "status": "affected",
              "version": "8.5.7.CF201706"
            },
            {
              "status": "affected",
              "version": "8.5.7.CF201703"
            },
            {
              "status": "affected",
              "version": "8.5.7.CF201612"
            },
            {
              "status": "affected",
              "version": "8.5.7.CF201609"
            },
            {
              "status": "affected",
              "version": "8.5.7.CF201606"
            },
            {
              "status": "affected",
              "version": "8.5.7"
            },
            {
              "status": "affected",
              "version": "8.5.6.2"
            },
            {
              "status": "affected",
              "version": "8.5.6.1"
            },
            {
              "status": "affected",
              "version": "8.5.6"
            },
            {
              "status": "affected",
              "version": "8.6"
            },
            {
              "status": "affected",
              "version": "8.5.0.2"
            },
            {
              "status": "affected",
              "version": "8.5.0.1"
            },
            {
              "status": "affected",
              "version": "8.5"
            },
            {
              "status": "affected",
              "version": "8.0.1.3"
            },
            {
              "status": "affected",
              "version": "8.0.1.2"
            },
            {
              "status": "affected",
              "version": "8.0.1.1"
            },
            {
              "status": "affected",
              "version": "8.0.1"
            },
            {
              "status": "affected",
              "version": "8.0"
            }
          ]
        },
        {
          "vendor": "IBM",
          "product": "Business Automation Workflow",
          "versions": [
            {
              "status": "affected",
              "version": "18.0.0.0"
            },
            {
              "status": "affected",
              "version": "19.0.0.1"
            }
          ]
        }
      ]
    }
  ],
  "published": "2020-05-06T14:15:11.020",
  "references": [
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/181126",
      "tags": [
        "VDB Entry",
        "Vendor Advisory"
      ],
      "source": "psirt@us.ibm.com"
    },
    {
      "url": "https://www.ibm.com/support/pages/node/6205805",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@us.ibm.com"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/181126",
      "tags": [
        "VDB Entry",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.ibm.com/support/pages/node/6205805",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "IBM Business Process Manager 8.0, 8.5, and 8.6 and IBM Business Automation Workflow 18.0 and 19.0 could allow a remote attacker to bypass security restrictions, caused by the failure to perform insufficient authorization checks. IBM X-Force ID: 181126."
    },
    {
      "lang": "es",
      "value": "IBM Business Process Manager versiones 8.0, 8.5 y 8.6 e IBM Business Automation Workflow versiones 18.0 y 19.0, podrían permitir a un atacante remoto omitir las restricciones de seguridad, causadas mediante el fallo al realizar comprobaciones de autorización insuficientes. ID de IBM X-Force: 181126."
    }
  ],
  "lastModified": "2026-06-17T03:19:59.827",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "criteria": "cpe:2.3:a:ibm:business_automation_workflow:*:*:*:*:*:*:*:*",
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              "versionEndIncluding": "18.0.0.2",
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            },
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              "versionEndIncluding": "19.0.0.3",
              "versionStartIncluding": "19.0.0.1"
            },
            {
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              "vulnerable": true,
              "matchCriteriaId": "D7F25B9A-6BC9-474D-9EFD-80955C972F58",
              "versionEndIncluding": "8.0.1.3",
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            },
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              "versionEndIncluding": "8.5.7.0",
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            },
            {
              "criteria": "cpe:2.3:a:ibm:business_process_manager:8.6.0.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "324A0484-C50D-4400-B6FD-23D793F032AD"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "psirt@us.ibm.com"
}