CVE-2022-20746

A vulnerability in the TCP proxy functionality of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to trigger a denial of service (DoS) condition. This vulnerability is due to improper handling of TCP flows. An attacker could exploit this vulnerability by sending a crafted stream of TCP traffic through an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.

Score

CVSS 3.1 8.6 High

Status

Modified - psirt@cisco.com

Published

2022-05-03

Last modified

2024-11-06

Weaknesses

CWE-476

Affected products

• Cisco Firepower Threat Defense Software (Cisco)
• Secure Firewall Threat Defense (Cisco)

References

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-tcp-dos-kM9SHhOu