CVE-2024-20407
Quick assessment
Affected
Cisco Cisco Firepower Threat Defense Software
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Cisco Firepower Threat Defense（FTD）是美国思科（Cisco）公司的一套提供下一代防火墙服务的统一软件。 Cisco Firepower Threat Defense存在安全漏洞，该漏洞源于处理初始（半开）TCP连接时出现逻辑错误。
Possible ATT&CK Techniques 1 AI
T1562
Get alerts for future matching vulnerabilities
Log in to subscribe
I. Basic Information for CVE-2024-20407
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗
Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
资源管理错误
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco Firepower Threat Defense 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Firepower Threat Defense（FTD）是美国思科（Cisco）公司的一套提供下一代防火墙服务的统一软件。 Cisco Firepower Threat Defense存在安全漏洞，该漏洞源于处理初始（半开）TCP连接时出现逻辑错误。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Cisco | Cisco Firepower Threat Defense Software | 6.2.3 | - |
|
II. Public POCs for CVE-2024-20407
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2024-20407
请登录查看更多情报信息。
Vendor Advisories for CVE-2024-20407 (1)
Same Patch Batch · Cisco · 2024-10-23 · 52 CVEs total
| CVE-2024-20424 | 9.9 CRITICAL | Cisco Secure Firewall Management Center 安全漏洞 |
| CVE-2024-20329 | 9.9 CRITICAL | Cisco Adaptive Security Appliance Software Remote Command Injection Vulnerability |
| CVE-2024-20412 | 9.3 CRITICAL | Cisco Firepower Threat Defense 安全漏洞 |
| CVE-2024-20351 | 8.6 HIGH | Cisco Firepower Threat Defense Software Snort Firewall Denial of Service Vulnerability |
| CVE-2024-20402 | 8.6 HIGH | Cisco Firepower Threat Defense和Cisco Adaptive Security Appliance 安全漏洞 |
| CVE-2024-20339 | 8.6 HIGH | Cisco Firepower Threat Defense Software for Firepower 2100 Series TLS Denial of Service Vu |
| CVE-2024-20330 | 8.6 HIGH | Cisco Firepower Threat Defense Software for Cisco Firepower 2100 Series TCP UDP Snort 2 an |
| CVE-2024-20426 | 8.6 HIGH | Cisco Firepower Threat Defense和Cisco Adaptive Security Appliance 安全漏洞 |
| CVE-2024-20495 | 8.6 HIGH | Cisco Firepower Threat Defense和Cisco Adaptive Security Appliance 安全漏洞 |
| CVE-2024-20494 | 8.6 HIGH | Cisco Firepower Threat Defense和Cisco Adaptive Security Appliance 安全漏洞 |
| CVE-2024-20260 | 8.6 HIGH | Cisco Adaptive Security Virtual Appliance and Secure Firewall Threat Defense Virtual SSL V |
| CVE-2024-20268 | 7.7 HIGH | Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software SNMP Deni |
| CVE-2024-20408 | 7.7 HIGH | Cisco Firepower Threat Defense和Cisco Adaptive Security Appliance 安全漏洞 |
| CVE-2024-20275 | 6.8 MEDIUM | Cisco Secure Firewall Management Center Software Backup Cluster Command Injection Vulnerab |
| CVE-2024-20331 | 6.8 MEDIUM | Cisco Adaptive Security Appliance and Firepower Threat Defense Software VPN Authentication |
| CVE-2024-20340 | 6.5 MEDIUM | Cisco Secure Firewall Management Center 安全漏洞 |
| CVE-2024-20374 | 6.5 MEDIUM | Cisco Secure Firewall Management Center 安全漏洞 |
| CVE-2024-20379 | 6.5 MEDIUM | Cisco Secure Firewall Management Center 安全漏洞 |
| CVE-2024-20473 | 6.5 MEDIUM | Cisco Secure Firewall Management Center 安全漏洞 |
| CVE-2024-20482 | 6.5 MEDIUM | Cisco Secure Firewall Management Center 安全漏洞 |
Showing top 20 of 52 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Cisco Firepower Threat Defense Software
-
CVE-2025-20268
Cisco Secure Firewall Threat Defense Software Geolocation Re -
CVE-2025-20222
Cisco Adaptive Security Appliance Software and Firepower Thr -
CVE-2025-20217
Cisco Firepower Threat Defense Intrusion Detection Denial of -
CVE-2021-1494
Snort 安全漏洞 -
CVE-2021-34753
Cisco Firepower Threat Defense Ethernet Industrial Protocol
Same vendor: Cisco
-
CVE-2026-76504
Cisco Catalyst SD-WAN Manager System Account Authorization B -
CVE-2026-76426
Cisco ISE REST API SQL Injection Vulnerability -
CVE-2026-20121
CIsco FTD Bypass Access List -
CVE-2026-76431
Cisco Identity Services Engine Arbitrary File Deletion Vulne -
CVE-2026-76427
Cisco ISE XML External Entity Injection Vulnerability
V. Comments for CVE-2024-20407
No comments yet