Vulnerability Description
A vulnerability in the processing of SSH connections of Cisco Firepower Management Center (FMC) 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 error handling when an SSH session fails to be established. An attacker could exploit this vulnerability by sending a high rate of crafted SSH connections to the instance. A successful exploit could allow the attacker to cause resource exhaustion, resulting in a reboot on the affected device.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Secure Firewall Management Center | >= 6.1.0, <= 6.1.0.7 |
| Cisco | Firepower Threat Defense | >= 6.1.0, <= 6.1.0.7 |
Related Weaknesses (CWE)
References
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/ci
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/ci
FAQ
What is CVE-2022-20854?
CVE-2022-20854 is a vulnerability with a CVSS score of 7.5 (HIGH). A vulnerability in the processing of SSH connections of Cisco Firepower Management Center (FMC) and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cau...
How severe is CVE-2022-20854?
CVE-2022-20854 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-20854?
Check the references section above for vendor advisories and patch information. Affected products include: Cisco Secure Firewall Management Center, Cisco Firepower Threat Defense.