{
  "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-2024-20263",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2024-20263",
    "idYear": 2024,
    "status": "PUBLISHED",
    "publishedAt": "2024-01-26T17:27:08.928Z",
    "updatedAt": "2024-11-13T14:55:13.733Z",
    "importedAt": "2026-10-24T01:57:07.518Z",
    "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 with the access control list (ACL) management within a stacked switch configuration of Cisco Business 250 Series Smart Switches and Business 350 Series Managed Switches could allow an unauthenticated, remote attacker to bypass protection offered by a configured ACL on an affected device. This vulnerability is due to incorrect processing of ACLs on a stacked configuration when either the primary or backup switches experience a full stack reload or power cycle. An attacker could exploit this vulnerability by sending crafted traffic through an affected device. A successful exploit could allow the attacker to bypass configured ACLs, causing traffic to be dropped or forwarded in an unexpected manner. The attacker does not have control over the conditions that result in the device being in the vulnerable state. Note: In the vulnerable state, the ACL would be correctly applied on the primary devices but could be incorrectly applied to the backup devices.",
      "affected": [
        {
          "vendor": "Cisco",
          "product": "Cisco Small Business Smart and Managed Switches",
          "versions": [
            {
              "version": "2.0.0.73",
              "status": "affected"
            },
            {
              "version": "2.1.0.63",
              "status": "affected"
            },
            {
              "version": "2.2.0.63",
              "status": "affected"
            },
            {
              "version": "2.2.0.66",
              "status": "affected"
            },
            {
              "version": "2.2.5.68",
              "status": "affected"
            },
            {
              "version": "2.2.7.07",
              "status": "affected"
            },
            {
              "version": "2.2.8.04",
              "status": "affected"
            },
            {
              "version": "2.3.0.130",
              "status": "affected"
            },
            {
              "version": "2.3.5.63",
              "status": "affected"
            },
            {
              "version": "2.4.0.91",
              "status": "affected"
            },
            {
              "version": "2.4.0.94",
              "status": "affected"
            },
            {
              "version": "2.4.5.71",
              "status": "affected"
            },
            {
              "version": "2.5.0.78",
              "status": "affected"
            },
            {
              "version": "2.5.0.79",
              "status": "affected"
            },
            {
              "version": "2.5.0.82",
              "status": "affected"
            },
            {
              "version": "2.5.0.83",
              "status": "affected"
            },
            {
              "version": "2.5.0.89",
              "status": "affected"
            },
            {
              "version": "2.5.0.90",
              "status": "affected"
            },
            {
              "version": "2.5.0.92",
              "status": "affected"
            },
            {
              "version": "2.5.5.47",
              "status": "affected"
            },
            {
              "version": "2.5.7.85",
              "status": "affected"
            },
            {
              "version": "2.5.8.12",
              "status": "affected"
            },
            {
              "version": "2.5.8.15",
              "status": "affected"
            },
            {
              "version": "2.5.9.13",
              "status": "affected"
            },
            {
              "version": "2.5.9.15",
              "status": "affected"
            },
            {
              "version": "2.5.9.16",
              "status": "affected"
            },
            {
              "version": "3.0.0.61",
              "status": "affected"
            },
            {
              "version": "3.0.0.69",
              "status": "affected"
            },
            {
              "version": "3.1.0.57",
              "status": "affected"
            },
            {
              "version": "3.1.1.7",
              "status": "affected"
            },
            {
              "version": "3.2.0.84",
              "status": "affected"
            },
            {
              "version": "3.2.0.89",
              "status": "affected"
            },
            {
              "version": "3.2.1.1",
              "status": "affected"
            },
            {
              "version": "3.3.0.16",
              "status": "affected"
            }
          ]
        }
      ]
    }
  }
}