CVE-2022-20920: Cisco IOS and IOS XE Software SSH Denial of Service Vulnerability
A vulnerability in the SSH implementation of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, remote attacker to cause an affected device to reload. This vulnerability is due to improper handling of resources during an exceptional situation. An attacker could exploit this vulnerability by continuously connecting to an affected device and sending specific SSH requests. A successful exploit could allow the attacker to cause the affected device to reload.
Affected Software
Event History
Frequently Asked Questions
What is CVE-2022-20920?
CVE-2022-20920 is a vulnerability in the SSH implementation of Cisco IOS Software and Cisco IOS XE Software that could allow an authenticated, remote attacker to cause an affected device to reload.
How severe is CVE-2022-20920?
CVE-2022-20920 has a severity rating of 7.7 (high).
Which software is affected by CVE-2022-20920?
Cisco IOS Software and Cisco IOS XE Software are affected by CVE-2022-20920.
What is the Common Weakness Enumeration (CWE) ID for CVE-2022-20920?
The CWE ID for CVE-2022-20920 is 755.
How can I fix CVE-2022-20920?
To fix CVE-2022-20920, apply the necessary updates or patches provided by Cisco.