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CVE-2020-5914

Status: ModifiedHigh (7.5)—

In BIG-IP ASM versions 15.1.0-15.1.0.4, 15.0.0-15.0.1.3, 14.1.0-14.1.2.3, 13.1.0-13.1.3.3, 12.1.0-12.1.5.1, and 11.6.1-11.6.5.1, undisclosed server cookie scenario may cause BD to restart under some circumstances.

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 Application Security Manager

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2020-5914",
  "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 ASM",
          "versions": [
            {
              "status": "affected",
              "version": "15.1.0-15.1.0.4, 15.0.0-15.0.1.3, 14.1.0-14.1.2.3, 13.1.0-13.1.3.3, 12.1.0-12.1.5.1, 11.6.1-11.6.5.1"
            }
          ]
        }
      ]
    }
  ],
  "published": "2020-08-26T15:15:13.100",
  "references": [
    {
      "url": "https://support.f5.com/csp/article/K37466356",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "f5sirt@f5.com"
    },
    {
      "url": "https://support.f5.com/csp/article/K37466356",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In BIG-IP ASM versions 15.1.0-15.1.0.4, 15.0.0-15.0.1.3, 14.1.0-14.1.2.3, 13.1.0-13.1.3.3, 12.1.0-12.1.5.1, and 11.6.1-11.6.5.1, undisclosed server cookie scenario may cause BD to restart under some circumstances."
    },
    {
      "lang": "es",
      "value": "En BIG-IP ASM versiones 15.1.0-15.1.0.4, 15.0.0-15.0.1.3, 14.1.0-14.1.2.3, 13.1.0-13.1.3.3, 12.1.0-12.1.5.1 y 11.6.1 -11.6.5.1, un escenario de cookie de servidor no revelada puede causar que BD se reinicie bajo algunas circunstancias"
    }
  ],
  "lastModified": "2026-06-17T03:22:26.913",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F7D92ED1-0B0B-4089-9715-89DB02AD4F7F",
              "versionEndExcluding": "11.6.5.2",
              "versionStartIncluding": "11.5.2"
            },
            {
              "criteria": "cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "91BF72A9-EB50-4315-B956-5926967DCC46",
              "versionEndExcluding": "12.1.5.2",
              "versionStartIncluding": "12.1.0"
            },
            {
              "criteria": "cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "4AEE0B76-3F8E-420A-9589-BF3FDB942DEB",
              "versionEndExcluding": "13.1.3.4",
              "versionStartIncluding": "13.1.0"
            },
            {
              "criteria": "cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "DA9E370F-2A37-4612-91DD-2B1FD7EECCE7",
              "versionEndExcluding": "14.1.2.5",
              "versionStartIncluding": "14.1.0"
            },
            {
              "criteria": "cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E6C4B56F-D022-4268-9D78-6E4D12AE9215",
              "versionEndExcluding": "15.0.1.4",
              "versionStartIncluding": "15.0.0"
            },
            {
              "criteria": "cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "2785E847-1627-4DD7-8361-6D3715A7ED5E",
              "versionEndExcluding": "15.1.0.5",
              "versionStartIncluding": "15.1.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "f5sirt@f5.com"
}