CVE-2024-20339 HIGH

CVE-2024-20339: Cisco Firepower Threat Defense Software for Firepower 2100 Series TLS Denial of Service Vulnerability

Vendor Cisco
Product Cisco Firepower Threat Defense Software
Weakness CWE-476
Published October 23, 2024
Last update October 24, 2024

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 TLS processing feature of Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 2100 Series could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to an issue that occurs when TLS traffic is processed. An attacker could exploit this vulnerability by sending certain TLS traffic over IPv4 through an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition and impacting traffic to and through the affected device.

Key dates

02Disclosure timeline

October 23, 2024 CVE published
October 24, 2024 Record updated