The vulnerability in the TLS processing function of Cisco Adaptive Security Appliance (ASA) and Cisco Firepower Threat Defense (FTD) for the Firepower 3100 Series and Firepower 4200 Series devices allows a attacker to induce a service failure.

The vulnerability of the TLS processing function in Cisco Adaptive Security Appliance ASA and Cisco Firepower Threat Defense FTD for the Firepower 3100 Series and Firepower 4200 Series devices is related to improper cleaning or release of resources. Exploiting this vulnerability can allow a...

CVE-2025-20127 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software for Firepower 3100 and 4200 Series TLS Cipher Denial of Service Vulnerability

A vulnerability in the TLS 1.3 implementation for a specific cipher for Cisco Secure Firewall Adaptive Security Appliance ASA Software and Cisco Secure Firewall Threat Defense FTD Software for Cisco Firepower 3100 and 4200 Series devices could allow an authenticated, remote attacker to consume...