VULNERABILITY INTELLIGENCE

CVE-2022-20746

CVSS score8.6 HIGH
EPSS probability1.36%
CISA KEVNot currently listed
Published2022-05-03
Last modified2026-08-11
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Description

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.

Weakness classification

  • psirt@cisco.com: CWE-476
  • nvd@nist.gov: CWE-476

Primary references