{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2023-20251",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-20251",
    "idYear": 2023,
    "status": "PUBLISHED",
    "publishedAt": "2023-09-27T17:25:25.453Z",
    "updatedAt": "2024-08-02T09:05:36.727Z",
    "importedAt": "2026-10-24T01:56:49.724Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": null,
      "summary": "A vulnerability in the memory buffer of Cisco Wireless LAN Controller (WLC) AireOS Software could allow an unauthenticated, adjacent attacker to cause memory leaks that could eventually lead to a device reboot.\r\n\r This vulnerability is due to memory leaks caused by multiple clients connecting under specific conditions. An attacker could exploit this vulnerability by causing multiple wireless clients to attempt to connect to an access point (AP) on an affected device. A successful exploit could allow the attacker to cause the affected device to reboot after a significant amount of time, resulting in a denial of service (DoS) condition.",
      "affected": [
        {
          "vendor": "Cisco",
          "product": "Cisco Wireless LAN Controller (WLC)",
          "versions": [
            {
              "version": "8.10.162.0",
              "status": "affected"
            },
            {
              "version": "8.10.151.0",
              "status": "affected"
            },
            {
              "version": "8.10.171.0",
              "status": "affected"
            },
            {
              "version": "8.10.170.0",
              "status": "affected"
            },
            {
              "version": "8.10.181.0",
              "status": "affected"
            },
            {
              "version": "8.10.182.0",
              "status": "affected"
            },
            {
              "version": "8.10.183.0",
              "status": "affected"
            },
            {
              "version": "8.10.185.0",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Cisco",
          "product": "Cisco Mobility Express",
          "versions": [
            {
              "version": "8.10.183.0",
              "status": "affected"
            },
            {
              "version": "8.10.162.0",
              "status": "affected"
            },
            {
              "version": "8.10.151.0",
              "status": "affected"
            },
            {
              "version": "8.10.185.0",
              "status": "affected"
            },
            {
              "version": "8.10.171.0",
              "status": "affected"
            },
            {
              "version": "8.10.182.0",
              "status": "affected"
            },
            {
              "version": "8.10.181.0",
              "status": "affected"
            }
          ]
        }
      ]
    }
  }
}