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CVE-2021-20578

Status: ModifiedCritical (9.8)—

IBM Cloud Pak for Security (CP4S) 1.7.0.0, 1.7.1.0, 1.7.2.0, and 1.8.0.0 could allow an attacker to perform unauthorized actions due to improper or missing authentication controls. IBM X-Force ID: 199282.

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 (1)

IBM — Cloud PAK FOR Security

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2021-20578",
  "cveTags": [],
  "metrics": {
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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          "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
      }
    ],
    "cvssMetricV30": [
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        "cvssData": {
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          "attackVector": "ADJACENT_NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.5,
        "exploitabilityScore": 2.8
      }
    ],
    "cvssMetricV31": [
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        "type": "Primary",
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        "cvssData": {
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              "version": "1.7.1.0"
            },
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  "published": "2021-09-30T17:15:07.723",
  "references": [
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      "tags": [
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      "source": "psirt@us.ibm.com"
    },
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      "tags": [
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-287"
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      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "IBM Cloud Pak for Security (CP4S) 1.7.0.0, 1.7.1.0, 1.7.2.0, and 1.8.0.0 could allow an attacker to perform unauthorized actions due to improper or missing authentication controls. IBM X-Force ID: 199282."
    },
    {
      "lang": "es",
      "value": "IBM Cloud Pak for Security (CP4S) versiones 1.7.0.0, 1.7.1.0, 1.7.2.0 y 1.8.0.0, podría permitir a un atacante llevar a cabo acciones no autorizadas debido a controles de autenticación inapropiados o ausentes. IBM X-Force ID: 199282"
    }
  ],
  "lastModified": "2026-06-17T03:34:02.937",
  "configurations": [
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  "sourceIdentifier": "psirt@us.ibm.com"
}