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CVE-2018-5539

Status: ModifiedHigh (7.5)—

Under certain conditions, on F5 BIG-IP ASM 13.0.0-13.1.0.7, 12.1.0-12.1.3.5, 11.6.0-11.6.3.1, 11.5.1-11.5.6, or 11.2.1, when processing CSRF protections, the BIG-IP ASM bd process may restart and produce a core file.

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-2018-5539",
  "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
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/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": "F5 Networks, Inc.",
          "product": "BIG-IP (ASM)",
          "versions": [
            {
              "status": "affected",
              "version": "13.0.0-13.1.0.7"
            },
            {
              "status": "affected",
              "version": "12.1.0-12.1.3.5"
            },
            {
              "status": "affected",
              "version": "11.6.0-11.6.3.1"
            },
            {
              "status": "affected",
              "version": "11.5.1-11.5.6"
            },
            {
              "status": "affected",
              "version": "11.2.1"
            }
          ]
        }
      ]
    }
  ],
  "published": "2018-07-25T14:29:00.430",
  "references": [
    {
      "url": "http://www.securityfocus.com/bid/104921",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "f5sirt@f5.com"
    },
    {
      "url": "https://support.f5.com/csp/article/K75432956",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "f5sirt@f5.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/104921",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://support.f5.com/csp/article/K75432956",
      "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": "Under certain conditions, on F5 BIG-IP ASM 13.0.0-13.1.0.7, 12.1.0-12.1.3.5, 11.6.0-11.6.3.1, 11.5.1-11.5.6, or 11.2.1, when processing CSRF protections, the BIG-IP ASM bd process may restart and produce a core file."
    },
    {
      "lang": "es",
      "value": "En ciertas condiciones, en F5 BIG-IP ASM 13.0.0-13.1.0.7, 12.1.0-12.1.3.5, 11.6.0-11.6.3.1, 11.5.1-11.5.6 o 11.2.1, al procesar protecciones CSRF, el proceso BIG-IP ASM bd podría reiniciarse y producir un archivo core."
    }
  ],
  "lastModified": "2026-06-17T02:00:29.720",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "90EC6DF6-A7DF-4A1C-9D2F-C02EDB5FFCF2",
              "versionEndIncluding": "11.5.6",
              "versionStartIncluding": "11.5.1"
            },
            {
              "criteria": "cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "961AFB08-734F-4C41-BE91-B4649B23E45F",
              "versionEndIncluding": "11.6.3",
              "versionStartIncluding": "11.6.1"
            },
            {
              "criteria": "cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "397AC4A5-B67C-483B-84F7-8CB294BB460C",
              "versionEndIncluding": "12.1.3",
              "versionStartIncluding": "12.1.0"
            },
            {
              "criteria": "cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "41A8A1C4-E425-40BD-B884-527E7CC62D24",
              "versionEndIncluding": "13.1.0",
              "versionStartIncluding": "13.0.0"
            },
            {
              "criteria": "cpe:2.3:a:f5:big-ip_application_security_manager:11.2.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A635FEC4-4F52-4971-A67D-47E68108E4F4"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "f5sirt@f5.com"
}