{"api_version":"1","generated_at":"2026-07-23T22:43:41+00:00","cve":"CVE-2022-20950","urls":{"html":"https://cve.report/CVE-2022-20950","api":"https://cve.report/api/cve/CVE-2022-20950.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2022-20950","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2022-20950"},"summary":{"title":"CVE-2022-20950","description":"A vulnerability in the interaction of SIP and Snort 3 for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the Snort 3 detection engine to restart. This vulnerability is due to a lack of error-checking when SIP bidirectional flows are being inspected by Snort 3. An attacker could exploit this vulnerability by sending a stream of crafted SIP traffic through an interface on the targeted device. 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This vulnerability is due to a lack of error-checking when SIP bidirectional flows are being inspected by Snort 3. An attacker could exploit this vulnerability by sending a stream of crafted SIP traffic through an interface on the targeted device. A successful exploit could allow the attacker to trigger a restart of the Snort 3 process, resulting in a denial of service (DoS) condition."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"Allocation of Resources Without Limits or Throttling"}]}]},"affects":{"vendor":{"vendor_data":[{"vendor_name":"Cisco","product":{"product_data":[{"product_name":"Cisco Firepower Threat Defense Software","version":{"version_data":[{"version_value":"7.2.0","version_affected":"="},{"version_value":"7.2.0.1","version_affected":"="}]}}]}}]}},"references":{"reference_data":[{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftdsnort3sip-dos-A4cHeArC","refsource":"MISC","name":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftdsnort3sip-dos-A4cHeArC"}]},"source":{"advisory":"cisco-sa-ftdsnort3sip-dos-A4cHeArC","discovery":"EXTERNAL","defects":["CSCwb99509"]},"exploit":[{"lang":"en","value":"The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."}],"impact":{"cvss":[{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L","baseScore":5.8,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"LOW"}]}},"nvd":{"publishedDate":"2022-11-15 21:15:00","lastModifiedDate":"2024-01-25 17:15:00","problem_types":["CWE-754"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"LOW","baseScore":5.3,"baseSeverity":"MEDIUM"},"exploitabilityScore":3.9,"impactScore":1.4}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:cisco:firepower_threat_defense:7.2.0.1:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:cisco:firepower_threat_defense:7.2.0:*:*:*:*:*:*:*","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2022","CveId":"20950","Ordinal":"220076","Title":"CVE-2022-20950","CVE":"CVE-2022-20950","Year":"2022"},"notes":[{"CveYear":"2022","CveId":"20950","Ordinal":"1","NoteData":"** RESERVED ** This candidate has been reserved by an organization or individual that will use it when announcing a new security problem. When the candidate has been publicized, the details for this candidate will be provided.","Type":"Description","Title":null}]}}}