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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
medium advisory

Cisco ASA Logging Message Suppression

Detection of 'no logging message' command usage on Cisco ASA devices, potentially indicating an adversary suppressing security-critical log events to evade detection.

ASA +3 defense-evasion impair-defenses network
2r 1t
medium advisory

Cisco ASA Logging Filters Configuration Tampering

Tampering with logging filter configurations on Cisco ASA devices can allow attackers to evade detection by reducing logging levels or disabling specific log categories.

ASA +3 cisco logging evasion
2r 1t