{"id":"CVE-2026-76420","published":"2026-09-16T17:18:09.330","lastModified":"2026-09-17T12:18:26.450","description":"A vulnerability in the internal configuration of the Apache JServ Protocol (AJP) connector for Cisco Secure FMC Software could allow an unauthenticated, remote attacker to impersonate a peer device.\r\n\r\nThis vulnerability is due to incorrect initialization of encryption parameters for the AJP connector at boot time. An attacker could exploit this vulnerability by sending crafted packets to the AJP connector. A successful exploit could allow the attacker to execute commands as root and gain full control over the FMC REST APIs on the affected device.\r\nNote: This vulnerability can be exploited only if the valid sftunnel connection between Cisco Secure FMC Software and Cisco Secure FTD Software is down.","cvssScore":9,"cvssSeverity":"CRITICAL","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","cwes":["CWE-285"],"vendors":[],"products":[],"references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc2-multivulns-HXgcqRG","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":{"summary":"The flaw allows unauthenticated attackers to exploit incorrect encryption parameter initialization, gaining root access and control over FMC REST APIs.","exploitability":"Exploitation requires a down valid sftunnel connection, making it moderately difficult.","blast_radius":"If exploited, attackers could gain full control over the FMC REST APIs, impacting device security significantly.","remediation":"Disable the AJP connector or upgrade to the latest version of Cisco Secure FMC Software.","detection":"No reliable host or network indicator is derivable from the published description.","tags":["rce","auth-bypass","web","api","critical"],"model":"qwen2.5:7b-instruct","analyzedAt":"2026-09-29T09:13:28.874Z"}}