{"api_version":"1","generated_at":"2026-04-22T21:39:48+00:00","cve":"CVE-2023-20270","urls":{"html":"https://cve.report/CVE-2023-20270","api":"https://cve.report/api/cve/CVE-2023-20270.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2023-20270","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-20270"},"summary":{"title":"CVE-2023-20270","description":"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. 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