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CVE-2019-6661

Status: ModifiedHigh (7.5)—

When the BIG-IP APM 14.1.0-14.1.2, 14.0.0-14.0.1, 13.1.0-13.1.3.1, 12.1.0-12.1.4.1, or 11.5.1-11.6.5 system processes certain requests, the APD/APMD daemon may consume excessive resources.

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)

F5 — Big-ip Access Policy Manager

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2019-6661",
  "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": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "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",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "f5sirt@f5.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "BIG-IP APM",
          "versions": [
            {
              "status": "affected",
              "version": "14.1.0-14.1.2, 14.0.0-14.0.1, 13.1.0-13.1.3.1, 12.1.0-12.1.4.1, 11.5.1-11.6.5"
            }
          ]
        }
      ]
    }
  ],
  "published": "2019-11-15T21:15:11.357",
  "references": [
    {
      "url": "https://support.f5.com/csp/article/K61705126",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "f5sirt@f5.com"
    },
    {
      "url": "https://support.f5.com/csp/article/K61705126",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "When the BIG-IP APM 14.1.0-14.1.2, 14.0.0-14.0.1, 13.1.0-13.1.3.1, 12.1.0-12.1.4.1, or 11.5.1-11.6.5 system processes certain requests, the APD/APMD daemon may consume excessive resources."
    },
    {
      "lang": "es",
      "value": "Cuando el sistema BIG-IP APM versiones 14.1.0 hasta 14.1.2, 14.0.0 hasta 14.0.1, 13.1.0 hasta 13.1.3.1, 12.1.0 hasta 12.1.4.1 o 11.5.1 hasta 11.6.5, procesa determinadas peticiones, el demonio APD/APMD puede consumir recursos excesivos."
    }
  ],
  "lastModified": "2026-06-17T02:39:27.380",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "74C9AC8A-C886-4BEB-8C22-903FC8523296",
              "versionEndExcluding": "11.6.5.1",
              "versionStartIncluding": "11.6.2"
            },
            {
              "criteria": "cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "9264B296-3445-4B9F-927D-7865BF3D8AF6",
              "versionEndExcluding": "12.1.5",
              "versionStartIncluding": "12.1.0"
            },
            {
              "criteria": "cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "BEE55663-119A-4ECD-9840-55E5B1AF1543",
              "versionEndExcluding": "13.1.3.2",
              "versionStartIncluding": "13.0.0"
            },
            {
              "criteria": "cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "58C8E163-2A45-4C64-A7C2-5686C1EB3C78",
              "versionEndExcluding": "14.0.1.1",
              "versionStartIncluding": "14.0.0"
            },
            {
              "criteria": "cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "83963214-62C5-49F7-BA25-0D2440C910E8",
              "versionEndExcluding": "14.1.2.1",
              "versionStartIncluding": "14.1.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "f5sirt@f5.com"
}