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critical advisory

Multiple Vulnerabilities in Cisco Products Allow for Remote Code Execution

Multiple vulnerabilities in Cisco ASA, Secure Firewall Threat Defense, IOS, IOS XE, and IOS XR allow a remote attacker to bypass authentication and execute arbitrary code with administrator privileges.

ASA +4 cisco vulnerability rce authentication-bypass
2r 4t 3c
critical threat

UAT-4356 FIRESTARTER Backdoor Targeting Cisco Firepower Devices

UAT-4356 is actively targeting Cisco Firepower devices running FXOS, exploiting CVE-2025-20333 and CVE-2025-20362 to deploy the FIRESTARTER backdoor which allows remote access and control by injecting malicious shellcode into the LINA process.

Firepower eXtensible Operating System +2 UAT-4356 firestarter cisco backdoor network espionage
2r 2t 2c 2i