NULL pointer dereference in Cisco Firewall Threat Defense (FTD) - CVE-2022-20746
Published: April 28, 2022
Vulnerability identifier: #VU62682
CSH Severity: High
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-2022-20746
CWE-ID: CWE-476
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 a NULL pointer dereference error in the TCP proxy functionality. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.
Affected software
Cisco Firewall Threat Defense (FTD)
How to mitigate CVE-2022-20746
Install updates from vendor's website.
Cisco Firewall Threat Defense (FTD) - update to 7.0.1