CVE-2026-20005
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I. Basic Information for CVE-2026-20005
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
Multiple Cisco products are affected by a vulnerability in the Snort 3 Detection Engine that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to restart, resulting in an interruption of packet inspection. This vulnerability is due to incomplete parsing of the SSL handshake ingress packets. An attacker could exploit this vulnerability by sending crafted SSL handshake packets. A successful exploit could allow the attacker to cause a denial of service (DoS) condition when the Snort 3 Detection Engine restarts unexpectedly.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
错误条件报告缺失
Source: NVD (National Vulnerability Database)
Vulnerability Title
Cisco多款产品 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco IOS XE Software等都是美国思科（Cisco）公司的产品。Cisco IOS XE Software是一种网络操作系统。Cisco Secure FTD Software是一款下一代防火墙系统的核心软件平台。Cisco Secure Firewall Threat Defense Software是一个防火墙操作系统。 Cisco多款产品存在安全漏洞，该漏洞源于Snort 3检测引擎对SSL握手数据包解析不完整，可能导致未经身份验证的远程攻击者造成拒绝服务。以下产品受到影响：Cis
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 Secure Firewall Threat Defense (FTD) Software | 7.6.0 | - | |
| Cisco | Cisco Cyber Vision | 3.0.4 | - | |
| Cisco | Cisco UTD SNORT IPS Engine Software | 17.2.1r | - |
II. Public POCs for CVE-2026-20005
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Cisco · 2026-03-04 · 50 CVEs total
| CVE-2026-20079 | 10.0 CRITICAL | Cisco Secure Firewall Management Center 安全漏洞 |
| CVE-2026-20131 | 10.0 CRITICAL | Cisco Secure Firewall Management Center Software Remote Code Execution Vulnerability |
| CVE-2026-20082 | 8.6 HIGH | Cisco Secure Firewall Adaptive Security Appliance 安全漏洞 |
| CVE-2026-20039 | 8.6 HIGH | Cisco Adaptive Security Appliance and Firepower Threat Defense Software SSL VPN Authentica |
| CVE-2026-20101 | 8.6 HIGH | Cisco Secure Firewall Adaptive Security Appliance和Cisco Secure FTD Software 安全特征问题漏洞 |
| CVE-2026-20103 | 8.6 HIGH | Cisco Secure Firewall Adaptive Security Appliance和Cisco Secure Firewall Threat Defense 安全漏 |
| CVE-2026-20002 | 8.1 HIGH | Cisco Secure Firewall Management Center SQL注入漏洞 |
| CVE-2026-20049 | 7.7 HIGH | Cisco Secure Firewall Adaptive Security Appliance和Cisco Secure Firewall Threat Defense 安全漏 |
| CVE-2026-20100 | 7.7 HIGH | Cisco Secure Firewall Adaptive Security Appliance和Cisco Secure Firewall Threat Defense 安全漏 |
| CVE-2026-20105 | 7.7 HIGH | Cisco Secure Firewall Adaptive Security Appliance和Cisco Secure Firewall Threat Defense 安全漏 |
| CVE-2026-20014 | 7.7 HIGH | Cisco Secure Firewall Adaptive Security Appliance和Cisco Secure Firewall Threat Defense 安全漏 |
| CVE-2026-20062 | 7.2 HIGH | Cisco Secure Firewall Adaptive Security Appliance 安全漏洞 |
| CVE-2026-20025 | 6.8 MEDIUM | Cisco Secure Firewall Adaptive Security Appliance和Cisco Secure Firewall Threat Defense 输入验 |
| CVE-2026-20050 | 6.8 MEDIUM | Cisco Secure Firewall Threat Defense Decryption Policy Denial of Service Vulnerability |
| CVE-2026-20020 | 6.8 MEDIUM | Cisco Secure Firewall Adaptive Security Appliance和Cisco Secure Firewall Threat Defense 输入验 |
| CVE-2026-20024 | 6.8 MEDIUM | Cisco Secure Firewall Adaptive Security Appliance和Cisco Secure Firewall Threat Defense 缓冲区 |
| CVE-2026-20064 | 6.5 MEDIUM | Cisco Secure Firewall Threat Defense 代码问题漏洞 |
| CVE-2026-20001 | 6.5 MEDIUM | Cisco Secure Firewall Management Center Software SQL Injection Vulnerabilities |
| CVE-2026-20022 | 6.1 MEDIUM | Cisco Secure Firewall Adaptive Security Appliance和Cisco Secure Firewall Threat Defense 安全漏 |
| CVE-2026-20149 | 6.1 MEDIUM | Cisco Webex 跨站脚本漏洞 |
Showing top 20 of 50 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Cisco Secure Firewall Threat Defense (FTD) Software
- CVE-2026-20064
Cisco Secure Firewall Threat Defense 代码问题漏洞 - CVE-2026-20016
Cisco Secure Firewall Adaptive Security Appliance和Cisco Secu - CVE-2026-20066
Multiple Cisco Products Snort 3 TBD Denial of Service Vulner - CVE-2026-20065
Multiple Cisco Products Snort 3 TBD Denial of Service Vulner - CVE-2026-20063
Cisco Secure FTD Software Authenticated Command Injection Vu
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
V. Comments for CVE-2026-20005
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