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: CVE Program / CVE List V5
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: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
错误条件报告缺失
Source: CVE Program / CVE List V5
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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Vendor Advisories for CVE-2026-20005 (1)
Same Patch Batch · Cisco · 2026-03-04 · 50 CVEs total
| CVE-2026-20131 | 10.0 CRITICAL | Cisco Secure Firewall Management Center Software Remote Code Execution Vulnerability |
| CVE-2026-20079 | 10.0 CRITICAL | Cisco Secure Firewall Management Center Authentication Bypass Remote Code Execution Vulner |
| CVE-2026-20082 | 8.6 HIGH | Cisco Secure Firewall Adaptive Security Appliance 安全漏洞 |
| 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-2026-20039 | 8.6 HIGH | Cisco Adaptive Security Appliance and Firepower Threat Defense Software SSL VPN Authentica |
| CVE-2026-20002 | 8.1 HIGH | Cisco Secure Firewall Management Center SQL注入漏洞 |
| 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-2026-20049 | 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-2026-20062 | 7.2 HIGH | Cisco Secure Firewall Adaptive Security Appliance 安全漏洞 |
| CVE-2026-20024 | 6.8 MEDIUM | Cisco Secure Firewall Adaptive Security Appliance和Cisco Secure Firewall Threat Defense 缓冲区 |
| CVE-2026-20020 | 6.8 MEDIUM | Cisco Secure Firewall Adaptive Security Appliance和Cisco Secure Firewall Threat Defense 输入验 |
| 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-2026-20001 | 6.5 MEDIUM | Cisco Secure Firewall Management Center Software SQL Injection Vulnerabilities |
| CVE-2026-20064 | 6.5 MEDIUM | Cisco Secure Firewall Threat Defense 代码问题漏洞 |
| CVE-2026-20070 | 6.1 MEDIUM | Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Softw |
| CVE-2026-20023 | 6.1 MEDIUM | Cisco Secure Firewall Adaptive Security Appliance和Cisco Secure Firewall Threat Defense 缓冲区 |
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-2026-20349
Cisco Secure Firewall Adaptive Security Appliance and Secure - CVE-2026-20348
ClamAV XAR File Format Processing Memory Corruption Vulnerab - CVE-2026-20345
ClamAV GPT File Format Processing Memory Corruption Vulnerab - CVE-2026-20339
ClamAV PESpin File Format Processing Integer Overflow Vulner - CVE-2026-20347
ClamAV Mach-O File Format Processing Memory Corruption Vulne
V. Comments for CVE-2026-20005
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