CVE-2020-3306
HIGHCisco ASA & FTD - Unauthenticated DoS via DHCP Packet Processing
Title source: llmDescription
A vulnerability in the DHCP module 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 the affected device. The vulnerability is due to incorrect processing of certain DHCP packets. An attacker could exploit this vulnerability by sending a crafted DHCP packet to the affected device. A successful exploit could allow the attacker to cause a DoS condition on the affected device.
References (1)
Core 1
Core References
Vendor Advisory vendor-advisory
x_refsource_cisco
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-dos-qk8cTGLz
Scores
CVSS v3
7.5
EPSS
0.0023
EPSS Percentile
46.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-400
Status
published
Products (3)
cisco/adaptive_security_appliance
< 9.6.4.34
cisco/adaptive_security_appliance_software
9.7 - 9.8.4.10
cisco/firepower_threat_defense
< 6.3.0.5
Published
May 06, 2020
Tracked Since
Feb 18, 2026