High severity8.6NVD Advisory· Published May 3, 2022· Updated Aug 11, 2026
CVE-2022-20715
CVE-2022-20715
Description
A vulnerability in the remote access SSL VPN features 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 improper validation of errors that are logged as a result of client connections that are made using remote access VPN. An attacker could exploit this vulnerability by sending crafted requests to an affected system. A successful exploit could allow the attacker to cause the affected device to restart, resulting in a DoS condition.
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Affected products
6cpe:2.3:a:cisco:secure_firewall_threat_defense:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:cisco:secure_firewall_threat_defense:*:*:*:*:*:*:*:*range: <6.4.0.15
- cpe:2.3:a:cisco:secure_firewall_threat_defense:7.1.0:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*Range: <9.8.4.44
- Range: n/a
Patches
Vulnerability mechanics
References
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