CVE-2020-3306: 
Cisco Adaptive Security Appliance (ASA) vulnerability analysis and mitigation

A vulnerability in the DHCP module of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software was discovered and assigned CVE-2020-3306. The vulnerability was reported on December 12, 2019, and publicly disclosed on May 6, 2020. This security flaw affects the DHCP processing functionality in Cisco ASA and FTD software (CVE Mitre).

The vulnerability stems from incorrect processing of certain DHCP packets in the affected software. When exploited, it allows an unauthenticated, remote attacker to trigger a denial of service (DoS) condition on the affected device. The vulnerability requires no authentication and can be exploited remotely (CVE Mitre).

A successful exploitation of this vulnerability could allow an attacker to cause a denial of service (DoS) condition on the affected device, potentially disrupting network operations and services (CVE Mitre).

The vulnerability can be exploited by sending crafted DHCP packets to the affected device. The attack vector is network-accessible and requires no authentication, making it relatively straightforward to exploit (CVE Mitre).

Cisco has released software updates that address this vulnerability. No workarounds are available that address this vulnerability (Cisco Advisory).