CVE-2018-15443— Cisco Firepower Detection Engine TCP Intrusion Prevention System Rule Bypass Vulnerability
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I. Basic Information for CVE-2018-15443
Vulnerability Information
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Vulnerability Title
Cisco Firepower Detection Engine TCP Intrusion Prevention System Rule Bypass Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in the detection engine of Cisco Firepower System Software could allow an unauthenticated, remote attacker to bypass a configured Intrusion Prevention System (IPS) rule that inspects certain types of TCP traffic. The vulnerability is due to incorrect TCP retransmission handling. An attacker could exploit this vulnerability by sending a crafted TCP connection request through an affected device. A successful exploit could allow the attacker to bypass configured IPS rules and allow uninspected traffic onto the network.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Cisco Firepower System Software 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Firepower System Software是美国思科（Cisco）公司的一款下一代防火墙产品（NGFW）。 Cisco Firepower System Software的检测引擎中存在安全漏洞。远程攻击者可利用该漏洞绕过配置的入侵防御系统（IPS）规则。
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 Management Center | n/a | - |
II. Public POCs for CVE-2018-15443
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181107-fde-tcp-bypassvendor-advisoryx_refsource_CISCO
- https://nvd.nist.gov/vuln/detail/CVE-2018-15443
Same Patch Batch · Cisco · 2018-11-08 · 15 CVEs total
| CVE-2018-15450 | Cisco Prime Collaboration Assurance File Overwrite Vulnerability | |
| CVE-2018-15451 | Cisco Prime Service Catalog Cross-Site Scripting Vulnerability | |
| CVE-2018-15447 | Cisco Integrated Management Controller Supervisor SQL Injection Vulnerability | |
| CVE-2018-15448 | Cisco Registered Envelope Service Information Disclosure Vulnerability | |
| CVE-2018-15449 | Cisco Video Surveillance Media Server Denial of Service Vulnerability | |
| CVE-2018-15444 | Cisco Energy Management Suite XML External Entity Vulnerability | |
| CVE-2018-15445 | Cisco Energy Management Suite Cross-Site Request Forgery Vulnerability | |
| CVE-2018-15446 | Cisco Meeting Server Information Disclosure Vulnerability | |
| CVE-2018-15381 | Cisco Unity Express Arbitrary Command Execution Vulnerability | |
| CVE-2018-15393 | Cisco Content Security Management Appliance (SMA) Cross-Site Scripting Vulnerability | |
| CVE-2018-15394 | Cisco Stealthwatch Management Console Authentication Bypass Vulnerability | |
| CVE-2018-15437 | Cisco Immunet and Cisco AMP for Endpoints System Scan Denial of Service Vulnerability | |
| CVE-2018-15439 | Cisco Small Business Switches Privileged Access Vulnerability | |
| CVE-2018-0284 | Cisco Meraki Local Status Page Privilege Escalation Vulnerability |
IV. Related Vulnerabilities
Same product: Cisco Firepower Management Center
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Cisco Secure Firewall Management Center Software Command Inj - CVE-2025-20302
Cisco Secure Firewall Management Center Software Authorizati - CVE-2025-20301
Cisco Secure Firewall Management Center Software Authorizati - CVE-2025-20265
Cisco Secure Firewall Management Center Software Radius Remo
Same vendor: Cisco
- CVE-2026-20219
Cisco Slido 安全漏洞 - CVE-2026-20034
Cisco Unity Connection Remote Code Execution Vulnerability - CVE-2026-20035
Cisco Unity Connection Server-Side Request Forgery Vulnerabi - CVE-2026-20167
Cisco IoT Field Network Director Remote Device Denial of Ser - CVE-2026-20169
Cisco IoT Field Network Director Command Injection Vulnerabi
Same weakness: CWE-400
- CVE-2025-10470
Denial-of-Service via Magic Link Authentication in WSO2 Iden - CVE-2026-8187
Open5GS UPF gtp-path.c _gtpv1_u_recv_cb resource consumption - CVE-2026-42343
FastGPT: Uncontrolled Resource Consumption leading to Sandbo - CVE-2026-42212
SolidCAM-GPPL-IDE: XML External Entity (XXE) and billion-lau - CVE-2026-32686
Unbounded exponent in decimal enables unauthenticated DoS
V. Comments for CVE-2018-15443
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