Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2023-20042

A vulnerability in the AnyConnect SSL VPN feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to an implementation error within the SSL/TLS session handling process that can prevent the release of a session handler under specific conditions. An attacker could exploit this vulnerability by sending crafted SSL/TLS traffic to an affected device, increasing the probability of session handler leaks. A successful exploit could allow the attacker to eventually deplete the available session handler pool, preventing new sessions from being established and causing a DoS condition.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 42.0%
CVSS Severity
CVSS v3 Score 6.8
Products affected by CVE-2023-20042


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