CVE-2022-20746 HIGH

CVE-2022-20746: Cisco Firepower Threat Defense Software TCP Proxy Denial of Service Vulnerability

Vendor Cisco
Product Cisco Firepower Threat Defense Software
Weakness CWE-476
Published May 3, 2022
Last update November 6, 2024
View on NVD All CVEs

CVSS base score

8.6/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

May 3, 2022 CVE published
November 6, 2024 Record updated