{"api_version":"1","generated_at":"2026-04-22T21:39:30+00:00","cve":"CVE-2023-20264","urls":{"html":"https://cve.report/CVE-2023-20264","api":"https://cve.report/api/cve/CVE-2023-20264.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2023-20264","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-20264"},"summary":{"title":"CVE-2023-20264","description":"A vulnerability in the implementation of Security Assertion Markup Language (SAML) 2.0 single sign-on (SSO) for remote access VPN in Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to intercept the SAML assertion of a user who is authenticating to a remote access VPN session. This vulnerability is due to insufficient validation of the login URL. An attacker could exploit this vulnerability by persuading a user to access a site that is under the control of the attacker, allowing the attacker to modify the login URL. 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