Cisco fixes VPN DoS flaw discovered in password spray attacks

Cisco fixed a denial of service flaw in its Cisco ASA and Firepower Threat Defense (FTD) software, which was discovered during large-scale brute force attacks against Cisco VPN devices in April. [...]

source https://www.bleepingcomputer.com/news/security/cisco-fixes-vpn-dos-flaw-discovered-in-password-spray-attacks/