Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2024-20407

A vulnerability in the interaction between the TCP Intercept feature and the Snort 3 detection engine on Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass configured policies on an affected system. Devices that are configured with Snort 2 are not affected by this vulnerability. This vulnerability is due to a logic error when handling embryonic (half-open) TCP connections. An attacker could exploit this vulnerability by sending a crafted traffic pattern through an affected device. A successful exploit could allow unintended traffic to enter the network protected by the affected device.

Published

2024-10-23T18:15:08.413

Last Modified

2025-08-05T14:53:15.063

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 5.8 (MEDIUM)

Weaknesses
  • Type: Secondary
    CWE-399
  • Type: Primary
    NVD-CWE-noinfo
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application cisco firepower_threat_defense 6.2.3 Yes
Application cisco firepower_threat_defense 6.2.3.1 Yes
Application cisco firepower_threat_defense 6.2.3.2 Yes
Application cisco firepower_threat_defense 6.2.3.3 Yes
Application cisco firepower_threat_defense 6.2.3.4 Yes
Application cisco firepower_threat_defense 6.2.3.5 Yes
Application cisco firepower_threat_defense 6.2.3.6 Yes
Application cisco firepower_threat_defense 6.2.3.7 Yes
Application cisco firepower_threat_defense 6.2.3.8 Yes
Application cisco firepower_threat_defense 6.2.3.9 Yes
Application cisco firepower_threat_defense 6.2.3.10 Yes
Application cisco firepower_threat_defense 6.2.3.11 Yes
Application cisco firepower_threat_defense 6.2.3.12 Yes
Application cisco firepower_threat_defense 6.2.3.13 Yes
Application cisco firepower_threat_defense 6.2.3.14 Yes
Application cisco firepower_threat_defense 6.2.3.15 Yes
Application cisco firepower_threat_defense 6.2.3.16 Yes
Application cisco firepower_threat_defense 6.2.3.17 Yes
Application cisco firepower_threat_defense 6.2.3.18 Yes
Application cisco firepower_threat_defense 6.4.0 Yes
Application cisco firepower_threat_defense 6.4.0.1 Yes
Application cisco firepower_threat_defense 6.4.0.2 Yes
Application cisco firepower_threat_defense 6.4.0.3 Yes
Application cisco firepower_threat_defense 6.4.0.4 Yes
Application cisco firepower_threat_defense 6.4.0.5 Yes
Application cisco firepower_threat_defense 6.4.0.6 Yes
Application cisco firepower_threat_defense 6.4.0.7 Yes
Application cisco firepower_threat_defense 6.4.0.8 Yes
Application cisco firepower_threat_defense 6.4.0.9 Yes
Application cisco firepower_threat_defense 6.4.0.10 Yes
Application cisco firepower_threat_defense 6.4.0.11 Yes
Application cisco firepower_threat_defense 6.4.0.12 Yes
Application cisco firepower_threat_defense 6.4.0.13 Yes
Application cisco firepower_threat_defense 6.4.0.14 Yes
Application cisco firepower_threat_defense 6.4.0.15 Yes
Application cisco firepower_threat_defense 6.4.0.16 Yes
Application cisco firepower_threat_defense 6.4.0.17 Yes
Application cisco firepower_threat_defense 6.4.0.18 Yes
Application cisco firepower_threat_defense 6.6.0 Yes
Application cisco firepower_threat_defense 6.6.0.1 Yes
Application cisco firepower_threat_defense 6.6.1 Yes
Application cisco firepower_threat_defense 6.6.3 Yes
Application cisco firepower_threat_defense 6.6.4 Yes
Application cisco firepower_threat_defense 6.6.5 Yes
Application cisco firepower_threat_defense 6.6.5.1 Yes
Application cisco firepower_threat_defense 6.6.5.2 Yes
Application cisco firepower_threat_defense 6.6.7 Yes
Application cisco firepower_threat_defense 6.6.7.1 Yes
Application cisco firepower_threat_defense 6.6.7.2 Yes
Application cisco firepower_threat_defense 6.7.0 Yes
Application cisco firepower_threat_defense 6.7.0.1 Yes
Application cisco firepower_threat_defense 6.7.0.2 Yes
Application cisco firepower_threat_defense 6.7.0.3 Yes
Application cisco firepower_threat_defense 7.0.0 Yes
Application cisco firepower_threat_defense 7.0.0.1 Yes
Application cisco firepower_threat_defense 7.0.1 Yes
Application cisco firepower_threat_defense 7.0.1.1 Yes
Application cisco firepower_threat_defense 7.0.2 Yes
Application cisco firepower_threat_defense 7.0.2.1 Yes
Application cisco firepower_threat_defense 7.0.3 Yes
Application cisco firepower_threat_defense 7.0.4 Yes
Application cisco firepower_threat_defense 7.0.5 Yes
Application cisco firepower_threat_defense 7.0.6 Yes
Application cisco firepower_threat_defense 7.0.6.1 Yes
Application cisco firepower_threat_defense 7.0.6.2 Yes
Application cisco firepower_threat_defense 7.1.0 Yes
Application cisco firepower_threat_defense 7.1.0.1 Yes
Application cisco firepower_threat_defense 7.1.0.2 Yes
Application cisco firepower_threat_defense 7.1.0.3 Yes
Application cisco firepower_threat_defense 7.2.0 Yes
Application cisco firepower_threat_defense 7.2.0.1 Yes
Application cisco firepower_threat_defense 7.2.1 Yes
Application cisco firepower_threat_defense 7.2.2 Yes
Application cisco firepower_threat_defense 7.2.3 Yes
Application cisco firepower_threat_defense 7.2.4 Yes
Application cisco firepower_threat_defense 7.2.4.1 Yes
Application cisco firepower_threat_defense 7.2.5 Yes
Application cisco firepower_threat_defense 7.2.5.1 Yes
Application cisco firepower_threat_defense 7.2.5.2 Yes
Application cisco firepower_threat_defense 7.2.6 Yes
Application cisco firepower_threat_defense 7.2.7 Yes
Application cisco firepower_threat_defense 7.2.8 Yes
Application cisco firepower_threat_defense 7.2.8.1 Yes
Application cisco firepower_threat_defense 7.3.0 Yes
Application cisco firepower_threat_defense 7.3.1 Yes
Application cisco firepower_threat_defense 7.3.1.1 Yes
Application cisco firepower_threat_defense 7.3.1.2 Yes
Application cisco firepower_threat_defense 7.4.0 Yes
Application cisco firepower_threat_defense 7.4.1 Yes
Application cisco firepower_threat_defense 7.4.1.1 Yes
References