Resource exhaustion in Cisco Secure Firewall Management Center (formerly Firepower Management Center, FMC) and Cisco Secure Firewall Threat Defense (FTD) - CVE-2022-20854
Published: November 11, 2022
Vulnerability identifier: #VU69242
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2022-20854
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources in the processing of SSH connections. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.
Affected software
Cisco Secure Firewall Management Center (formerly Firepower Management Center, FMC)
Cisco Secure Firewall Threat Defense (FTD)
Cisco Secure Firewall Threat Defense (FTD)
How to mitigate CVE-2022-20854
Install updates from vendor's website.
Cisco Secure Firewall Management Center (formerly Firepower Management Center, FMC) - addressed in versions 6.6.7, 7.1.0
Cisco Secure Firewall Threat Defense (FTD) - addressed in versions 6.6.7, 7.1.0
Cisco Secure Firewall Threat Defense (FTD) - addressed in versions 6.6.7, 7.1.0