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CVE-2016-8491

Status: ModifiedCritical (9.1)—

The presence of a hardcoded account named 'core' in Fortinet FortiWLC allows attackers to gain unauthorized read/write access via a remote shell.

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)

Fortinet — Fortiwlc

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2016-8491",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2016-8491",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-10-24T20:11:13.770072Z"
        }
      }
    ],
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 9.4,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:N",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 9.2,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 9.1,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.2,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "psirt@fortinet.com",
      "affectedData": [
        {
          "vendor": "Fortinet",
          "product": "Fortinet FortiWLC",
          "versions": [
            {
              "status": "affected",
              "version": "7.0-9-1"
            },
            {
              "status": "affected",
              "version": "7.0-10-0"
            },
            {
              "status": "affected",
              "version": "8.1-2-0"
            },
            {
              "status": "affected",
              "version": "8.1-3-2"
            },
            {
              "status": "affected",
              "version": "8.2-4-0"
            }
          ]
        }
      ]
    }
  ],
  "published": "2017-02-01T17:59:00.153",
  "references": [
    {
      "url": "http://www.securityfocus.com/bid/94186",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "psirt@fortinet.com"
    },
    {
      "url": "https://fortiguard.com/advisory/FG-IR-16-065",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@fortinet.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/94186",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://fortiguard.com/advisory/FG-IR-16-065",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-798"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The presence of a hardcoded account named 'core' in Fortinet FortiWLC allows attackers to gain unauthorized read/write access via a remote shell."
    },
    {
      "lang": "es",
      "value": "La presencia de una cuenta embebida llamada 'core' en Fortinet FortiWLC permite a atacantes obtener acceso de lectura/escritura no autorizado a través de una shell remota."
    }
  ],
  "lastModified": "2026-06-17T00:54:27.063",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:fortinet:fortiwlc:7.0-9-1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A842B7E0-7B16-4872-B18E-C05F30CD72CB"
            },
            {
              "criteria": "cpe:2.3:h:fortinet:fortiwlc:7.0-10-0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "7EBCE7F9-9DA6-40BD-9266-FCF0846B6280"
            },
            {
              "criteria": "cpe:2.3:h:fortinet:fortiwlc:8.1-2-0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "41B97F50-3CE8-48F8-B24A-4AA79C255C8F"
            },
            {
              "criteria": "cpe:2.3:h:fortinet:fortiwlc:8.1-3-2:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "4E60189C-EE4B-4910-BD58-35AB93482F0F"
            },
            {
              "criteria": "cpe:2.3:h:fortinet:fortiwlc:8.2-4-0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "CA834964-1568-48B9-9828-32C6109597B1"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "psirt@fortinet.com"
}