CVE-2022-20715

Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Remote Access SSL VPN Denial of Service Vulnerability

Description

A vulnerability in the remote access SSL VPN features 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 an affected device. This vulnerability is due to improper validation of errors that are logged as a result of client connections that are made using remote access VPN. An attacker could exploit this vulnerability by sending crafted requests to an affected system. A successful exploit could allow the attacker to cause the affected device to restart, resulting in a DoS condition.

Categories

8.6
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.46% Top 25%
Vendor Advisory cisco.com
Affected: Cisco Cisco Adaptive Security Appliance (ASA) Software
Published at:
Updated at:

References

Link Tags
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-dos-tL4uA4AA vendor advisory

Frequently Asked Questions

What is the severity of CVE-2022-20715?
CVE-2022-20715 has been scored as a high severity vulnerability.
How to fix CVE-2022-20715?
To fix CVE-2022-20715, 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-2022-20715 being actively exploited in the wild?
It is possible that CVE-2022-20715 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-20715?
CVE-2022-20715 affects Cisco Cisco Adaptive Security Appliance (ASA) Software.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.