{
  "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-2022-20691",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-20691",
    "idYear": 2022,
    "status": "PUBLISHED",
    "publishedAt": "2022-12-07T16:56:12.208Z",
    "updatedAt": "2024-08-03T02:17:53.194Z",
    "importedAt": "2026-10-24T01:56:36.661Z",
    "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 Cisco Discovery Protocol functionality of Cisco ATA 190 Series Adaptive Telephone Adapter firmware could allow an unauthenticated, adjacent attacker to cause a DoS condition of an affected device.\r\n This vulnerability is due to missing length validation of certain Cisco Discovery Protocol packet header fields. An attacker could exploit this vulnerability by sending crafted Cisco Discovery Protocol packets to an affected device. A successful exploit could allow the attacker to cause the device to exhaust available memory and cause the service to restart.\r\n Cisco has released firmware updates that address this vulnerability.  \r\n",
      "affected": [
        {
          "vendor": "Cisco",
          "product": "Cisco Analog Telephone Adaptor (ATA) Software",
          "versions": [
            {
              "version": "1.2.1",
              "status": "affected"
            },
            {
              "version": "1.2.2 SR1",
              "status": "affected"
            },
            {
              "version": "1.2.2",
              "status": "affected"
            },
            {
              "version": "1.2.2 SR2",
              "status": "affected"
            },
            {
              "version": "11.1.0 MSR4",
              "status": "affected"
            },
            {
              "version": "11.1.0",
              "status": "affected"
            },
            {
              "version": "11.1.0 MSR1",
              "status": "affected"
            },
            {
              "version": "11.1.0 MSR2",
              "status": "affected"
            },
            {
              "version": "11.1.0 MSR3",
              "status": "affected"
            },
            {
              "version": "1.1.0",
              "status": "affected"
            },
            {
              "version": "1.1.1",
              "status": "affected"
            },
            {
              "version": "1.1(4)",
              "status": "affected"
            },
            {
              "version": "1.1.2",
              "status": "affected"
            },
            {
              "version": "2.1(6)",
              "status": "affected"
            },
            {
              "version": "2.1(5)",
              "status": "affected"
            },
            {
              "version": "2.16(2)",
              "status": "affected"
            },
            {
              "version": "2.16(1)",
              "status": "affected"
            },
            {
              "version": "3.2(0)",
              "status": "affected"
            },
            {
              "version": "3.2(4)",
              "status": "affected"
            },
            {
              "version": "3.2(3)",
              "status": "affected"
            },
            {
              "version": "3.2(1)",
              "status": "affected"
            },
            {
              "version": "2.15",
              "status": "affected"
            },
            {
              "version": "2.14",
              "status": "affected"
            },
            {
              "version": "1.34",
              "status": "affected"
            },
            {
              "version": "1.0(0)",
              "status": "affected"
            },
            {
              "version": "3.1(1)",
              "status": "affected"
            },
            {
              "version": "3.1(0)",
              "status": "affected"
            },
            {
              "version": "3.1(2)",
              "status": "affected"
            },
            {
              "version": "3.0(0)",
              "status": "affected"
            },
            {
              "version": "9.2(3)",
              "status": "affected"
            },
            {
              "version": "9.2(1)",
              "status": "affected"
            },
            {
              "version": "9.0(3)",
              "status": "affected"
            },
            {
              "version": "12.0.1 SR2",
              "status": "affected"
            },
            {
              "version": "12.0.1",
              "status": "affected"
            },
            {
              "version": "12.0.1 SR1",
              "status": "affected"
            },
            {
              "version": "12.0.1 SR3",
              "status": "affected"
            },
            {
              "version": "12.0.1 SR4",
              "status": "affected"
            },
            {
              "version": "11.2.1",
              "status": "affected"
            }
          ]
        }
      ]
    }
  }
}