7.5
High
CVE-2022-20854 A vulnerability in the processing of SSH connections of Cisco Firepower Management Center (FMC) and Cisco Firepower…
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Cisco Firepower Management Center | Versions not published | |
| Cisco Firepower Threat Defense Software | Versions not published |
References
- cisco-sa-fmc-dos-OwEunWJN sec.cloudapps.cisco.com
Timeline
- Published
- Last modified
Other CVEs of Cisco Firepower Management Center
The 129 CVEs of Cisco Firepower Management Center →
CVE-2025-20220
A vulnerability in the CLI of Cisco Secure Firewall Management Center (FMC) Software and Cisco Secure Firewall Threat…
6.0
Medium
CVE-2025-20306
A vulnerability in the web-based management interface of Cisco Secure Firewall Management Center (FMC) Software could…
4.9
Medium
CVE-2025-20302
A vulnerability in the web-based management interface of Cisco Secure FMC Software could allow an authenticated,…
4.3
Medium
CVE-2025-20301
A vulnerability in the web-based management interface of Cisco Secure FMC Software could allow an authenticated,…
6.5
Medium