CVE-2020-3196

CVE-2020-3196 is a high-severity denial-of-service (DoS) vulnerability affecting Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software. An unauthenticated, remote attacker can exploit improper resource management in the SSL/TLS handler by establishing multiple specially crafted connections, leading to memory exhaustion. This results in the device ceasing to accept new SSL/TLS connections, requiring manual intervention for recovery. While the CVSS score is 8.6 (High), there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or KEV listing. Community discussion and media coverage are minimal, suggesting limited public awareness or active threat.