CVE-2020-3303: Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software IKEv1 Denial of Service Vulnerability
A vulnerability in the Internet Key Exchange version 1 (IKEv1) 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. The vulnerability is due to improper management of system memory. An attacker could exploit this vulnerability by sending malicious IKEv1 traffic to an affected device. A successful exploit could allow the attacker to cause a DoS condition on the affected device.
Affected Software
Event History
Frequently Asked Questions
What is CVE-2020-3303?
CVE-2020-3303 is a vulnerability in the Internet Key Exchange version 1 (IKEv1) feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition.
Who is affected by CVE-2020-3303?
The vulnerability affects Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software.
What is the severity of CVE-2020-3303?
The severity of CVE-2020-3303 is high, with a severity value of 7.5.
How can an attacker exploit CVE-2020-3303?
An unauthenticated, remote attacker can exploit CVE-2020-3303 by sending specially crafted IKEv1 packets to the affected software, causing a denial of service (DoS) condition.
Is there a fix for CVE-2020-3303?
Yes, Cisco has released software updates to address the vulnerability. It is recommended to install the latest updates provided by Cisco.