{
  "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-2024-20508",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2024-20508",
    "idYear": 2024,
    "status": "PUBLISHED",
    "publishedAt": "2024-09-25T16:19:39.387Z",
    "updatedAt": "2024-11-12T15:03:36.564Z",
    "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": "Cisco UTD Snort IPS Engine Software for Cisco IOS XE Software Security Policy Bypass and Denial of Service Vulnerability",
      "summary": "A vulnerability in Cisco Unified Threat Defense (UTD) Snort Intrusion Prevention System (IPS) Engine for Cisco IOS XE Software could allow an unauthenticated, remote attacker to bypass configured security policies or cause a denial of service (DoS) condition on an affected device.\r\n\r\nThis vulnerability is due to insufficient validation of HTTP requests when they are processed by Cisco UTD Snort IPS Engine. An attacker could exploit this vulnerability by sending a crafted HTTP request through an affected device. A successful exploit could allow the attacker to trigger a reload of the Snort process.  If the action in case of Cisco UTD Snort IPS Engine failure is set to the default, fail-open, successful exploitation of this vulnerability could allow the attacker to bypass configured security policies. If the action in case of Cisco UTD Snort IPS Engine failure is set to fail-close, successful exploitation of this vulnerability could cause traffic that is configured to be inspected by Cisco UTD Snort IPS Engine to be dropped.",
      "affected": [
        {
          "vendor": "Cisco",
          "product": "Cisco UTD SNORT IPS Engine Software",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "17.12.1a",
              "status": "affected"
            },
            {
              "version": "17.12.2",
              "status": "affected"
            },
            {
              "version": "17.13.1a",
              "status": "affected"
            },
            {
              "version": "17.12.3",
              "status": "affected"
            },
            {
              "version": "17.12.3a",
              "status": "affected"
            },
            {
              "version": "17.15.1a",
              "status": "affected"
            },
            {
              "version": "17.9.5a",
              "status": "affected"
            },
            {
              "version": "17.6.1a",
              "status": "affected"
            },
            {
              "version": "17.8.1a",
              "status": "affected"
            },
            {
              "version": "17.6.2",
              "status": "affected"
            },
            {
              "version": "17.7.2",
              "status": "affected"
            },
            {
              "version": "17.12.4",
              "status": "affected"
            },
            {
              "version": "17.14.1a",
              "status": "affected"
            },
            {
              "version": "17.11.1a",
              "status": "affected"
            },
            {
              "version": "17.7.1a",
              "status": "affected"
            },
            {
              "version": "17.6.6",
              "status": "affected"
            }
          ]
        }
      ]
    }
  }
}