{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-30T06:45:07.401","vulnerabilities":[{"cve":{"id":"CVE-2023-20270","sourceIdentifier":"psirt@cisco.com","published":"2023-11-01T17:15:11.783","lastModified":"2024-11-21T07:41:02.670","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"A vulnerability in the interaction between the Server Message Block (SMB) protocol preprocessor and the Snort 3 detection engine for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass the configured policies or cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper error-checking when the Snort 3 detection engine is processing SMB traffic. An attacker could exploit this vulnerability by sending a crafted SMB packet stream through an affected device. A successful exploit could allow the attacker to cause the Snort process to reload, resulting in a DoS condition."},{"lang":"es","value":"Una vulnerabilidad en la interacción entre el preprocesador del protocolo Server Message Block (SMB) y el motor de detección Snort 3 para el software Cisco Firepower Threat Defense (FTD) podría permitir que un atacante remoto no autenticado omita las políticas configuradas o provoque una Denegación de Servicio (DoS) condición en un dispositivo afectado. Esta vulnerabilidad se debe a una verificación de errores incorrecta cuando el motor de detección de Snort 3 procesa el tráfico SMB. Un atacante podría aprovechar esta vulnerabilidad enviando un flujo de paquetes SMB manipulado a través de un dispositivo afectado. Un exploit exitoso podría permitir al atacante hacer que el proceso Snort se recargue, lo que resultaría en una condición DoS."}],"metrics":{"cvssMetricV31":[{"source":"psirt@cisco.com","type":"Secondary","cvssData":{"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"},"exploitabilityScore":3.9,"impactScore":1.4},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"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"},"exploitabilityScore":3.9,"impactScore":1.4}]},"weaknesses":[{"source":"psirt@cisco.com","type":"Secondary","description":[{"lang":"en","value":"CWE-20"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"NVD-CWE-noinfo"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:cisco:firepower_threat_defense:7.1.0:*:*:*:*:*:*:*","matchCriteriaId":"D619BF54-1BA9-45D0-A876-92D7010088A0"},{"vulnerable":true,"criteria":"cpe:2.3:a:cisco:firepower_threat_defense:7.1.0.1:*:*:*:*:*:*:*","matchCriteriaId":"469EA365-DED5-4436-AAC2-5553529DE700"},{"vulnerable":true,"criteria":"cpe:2.3:a:cisco:firepower_threat_defense:7.1.0.2:*:*:*:*:*:*:*","matchCriteriaId":"4D94F400-5A35-41F5-B37F-E9DA6F87ED8E"},{"vulnerable":true,"criteria":"cpe:2.3:a:cisco:firepower_threat_defense:7.1.0.3:*:*:*:*:*:*:*","matchCriteriaId":"5364CB94-BEA3-4E9A-A2F9-EE96A2D7F8AB"},{"vulnerable":true,"criteria":"cpe:2.3:a:cisco:firepower_threat_defense:7.2.0:*:*:*:*:*:*:*","matchCriteriaId":"16FD5D12-CF1A-4990-99B3-1840EFBA5611"},{"vulnerable":true,"criteria":"cpe:2.3:a:cisco:firepower_threat_defense:7.2.0.1:*:*:*:*:*:*:*","matchCriteriaId":"FCD2D11D-FF08-44E4-BF67-D8DD1E701FCD"},{"vulnerable":true,"criteria":"cpe:2.3:a:cisco:firepower_threat_defense:7.2.1:*:*:*:*:*:*:*","matchCriteriaId":"F788D156-1F1F-4A08-848B-257BC4CCE000"},{"vulnerable":true,"criteria":"cpe:2.3:a:cisco:firepower_threat_defense:7.2.2:*:*:*:*:*:*:*","matchCriteriaId":"795ED164-7800-4D50-8E37-665BE30190D9"},{"vulnerable":true,"criteria":"cpe:2.3:a:cisco:firepower_threat_defense:7.2.3:*:*:*:*:*:*:*","matchCriteriaId":"1B0664B8-1670-4F47-A01E-089D05A9618A"},{"vulnerable":true,"criteria":"cpe:2.3:a:cisco:firepower_threat_defense:7.3.0:*:*:*:*:*:*:*","matchCriteriaId":"EBC0C3DC-4761-488A-90A9-6EA45EE61526"},{"vulnerable":true,"criteria":"cpe:2.3:a:cisco:firepower_threat_defense:7.3.1:*:*:*:*:*:*:*","matchCriteriaId":"62EE065B-F8B6-4125-8486-B2EE0566B27A"},{"vulnerable":true,"criteria":"cpe:2.3:a:cisco:firepower_threat_defense:7.3.1.1:*:*:*:*:*:*:*","matchCriteriaId":"5245DEF8-64BE-47C9-AA3C-DF3F7F92A89F"}]}]}],"references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-smbsnort3-dos-pfOjOYUV","source":"psirt@cisco.com","tags":["Vendor Advisory"]},{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-smbsnort3-dos-pfOjOYUV","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"]}]}}]}