CVE-2022-20920

Cisco IOS and IOS XE Software SSH Denial of Service Vulnerability

Description

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.

Category

7.7
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.18%
Vendor Advisory cisco.com
Affected: Cisco Cisco IOS
Published at:
Updated at:

References

Link Tags
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ssh-excpt-dos-FzOBQTnk vendor advisory

Frequently Asked Questions

What is the severity of CVE-2022-20920?
CVE-2022-20920 has been scored as a high severity vulnerability.
How to fix CVE-2022-20920?
To fix CVE-2022-20920, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-20920 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-20920 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-20920?
CVE-2022-20920 affects Cisco Cisco IOS.
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