FKIE_CVE-2021-26093

Vulnerability from fkie_nvd - Published: 2024-12-19 08:15 - Updated: 2026-06-17 03:42
Severity
7.3 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H
6.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Summary
An access of uninitialized pointer (CWE-824) vulnerability in FortiWLC versions 8.6.0, 8.5.3 and earlier may allow a local and authenticated attacker to crash the access point being managed by the controller by executing a crafted CLI command.
References
psirt@fortinet.comhttps://fortiguard.com/psirt/FG-IR-21-002Vendor Advisory
Impacted products
Vendor Product Version
fortinet fortiwlc *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:fortinet:fortiwlc:8.6.0:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortiwlc:8.5.3:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortiwlc:8.5.2:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortiwlc:8.5.1:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortiwlc:8.5.0:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortiwlc:8.4.8:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortiwlc:8.4.7:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortiwlc:8.4.6:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortiwlc:8.4.5:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortiwlc:8.4.4:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortiwlc:8.4.2:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortiwlc:8.4.1:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortiwlc:8.4.0:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortiwlc:8.3.3:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortiwlc:8.3.2:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortiwlc:8.3.1:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortiwlc:8.3.0:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortiwlc:8.2.7:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortiwlc:8.2.6:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortiwlc:8.2.5:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortiwlc:8.2.4:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortiwlc:8.1.3:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortiwlc:8.1.2:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortiwlc:8.0.6:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "product": "FortiWLC",
          "vendor": "Fortinet",
          "versions": [
            {
              "status": "affected",
              "version": "8.6.0"
            },
            {
              "lessThanOrEqual": "8.5.3",
              "status": "affected",
              "version": "8.5.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.4.8",
              "status": "affected",
              "version": "8.4.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.4.2",
              "status": "affected",
              "version": "8.4.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.3.3",
              "status": "affected",
              "version": "8.3.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.2.7",
              "status": "affected",
              "version": "8.2.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.1.3",
              "status": "affected",
              "version": "8.1.2",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "8.0.6"
            }
          ]
        }
      ],
      "source": "psirt@fortinet.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:fortinet:fortiwlc:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "860117DD-3D1F-4460-8A21-F51509DDB67B",
              "versionEndExcluding": "8.6.3",
              "versionStartIncluding": "8.0.6",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An access of uninitialized pointer (CWE-824) vulnerability\u00a0in FortiWLC versions 8.6.0, 8.5.3 and earlier may allow a local and authenticated attacker to crash the access point\u00a0being managed by the controller by executing a crafted CLI command."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de acceso a un puntero no inicializado (CWE-824) en FortiWLC versiones 8.6.0, 8.5.3 y anteriores puede permitir que un atacante local y autenticado bloquee el punto de acceso administrado por el controlador mediante la ejecuci\u00f3n de un comando CLI manipulado espec\u00edficamente."
    }
  ],
  "id": "CVE-2021-26093",
  "lastModified": "2026-06-17T03:42:51.020",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.3,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.0,
        "impactScore": 4.7,
        "source": "psirt@fortinet.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.0,
        "impactScore": 4.0,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2021-26093",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-12-20T16:45:09.690266Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-12-19T08:15:14.717",
  "references": [
    {
      "source": "psirt@fortinet.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://fortiguard.com/psirt/FG-IR-21-002"
    }
  ],
  "sourceIdentifier": "psirt@fortinet.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-824"
        }
      ],
      "source": "psirt@fortinet.com",
      "type": "Secondary"
    }
  ]
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.