{
  "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-2024-20494",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2024-20494",
    "idYear": 2024,
    "status": "PUBLISHED",
    "publishedAt": "2024-10-23T17:53:00.574Z",
    "updatedAt": "2024-10-23T19:39:04.608Z",
    "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 in the TLS cryptography functionality of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the device to reload unexpectedly, resulting in a denial of service (DoS) condition.\r\n\r This vulnerability is due to improper data validation during the TLS 1.3 handshake. An attacker could exploit this vulnerability by sending a crafted TLS 1.3 packet to an affected system through a TLS 1.3-enabled listening socket. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.\r\n\r Note: This vulnerability can also impact the integrity of a device by causing VPN HostScan communication failures or file transfer failures when Cisco ASA Software is upgraded using Cisco Adaptive Security Device Manager (ASDM).",
      "affected": [
        {
          "vendor": "Cisco",
          "product": "Cisco Adaptive Security Appliance (ASA) Software",
          "versions": [
            {
              "version": "9.19.1",
              "status": "affected"
            },
            {
              "version": "9.19.1.5",
              "status": "affected"
            },
            {
              "version": "9.19.1.9",
              "status": "affected"
            },
            {
              "version": "9.19.1.12",
              "status": "affected"
            },
            {
              "version": "9.19.1.18",
              "status": "affected"
            },
            {
              "version": "9.19.1.22",
              "status": "affected"
            },
            {
              "version": "9.19.1.24",
              "status": "affected"
            },
            {
              "version": "9.19.1.27",
              "status": "affected"
            },
            {
              "version": "9.19.1.28",
              "status": "affected"
            },
            {
              "version": "9.19.1.31",
              "status": "affected"
            },
            {
              "version": "9.20.1",
              "status": "affected"
            },
            {
              "version": "9.20.1.5",
              "status": "affected"
            },
            {
              "version": "9.20.2",
              "status": "affected"
            },
            {
              "version": "9.20.2.10",
              "status": "affected"
            },
            {
              "version": "9.20.2.21",
              "status": "affected"
            },
            {
              "version": "9.20.2.22",
              "status": "affected"
            },
            {
              "version": "9.20.3",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Cisco",
          "product": "Cisco Firepower Threat Defense Software",
          "versions": [
            {
              "version": "7.3.0",
              "status": "affected"
            },
            {
              "version": "7.3.1",
              "status": "affected"
            },
            {
              "version": "7.3.1.1",
              "status": "affected"
            },
            {
              "version": "7.3.1.2",
              "status": "affected"
            },
            {
              "version": "7.4.0",
              "status": "affected"
            },
            {
              "version": "7.4.1",
              "status": "affected"
            },
            {
              "version": "7.4.1.1",
              "status": "affected"
            },
            {
              "version": "7.4.2",
              "status": "affected"
            }
          ]
        }
      ]
    }
  }
}