CVE-2026-22925
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I. Basic Information for CVE-2026-22925
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability has been identified in SIMATIC CN 4100 (All versions < V5.0). The affected application is susceptible to resource exhaustion when subjected to high volume of TCP SYN packets This could allow an attacker to render the service unavailable and cause denial-of-service conditions by overwhelming system resources.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
不加限制或调节的资源分配
Source: NVD (National Vulnerability Database)
Vulnerability Title
Siemens SIMATIC CN 4100 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Siemens SIMATIC CN 4100是德国西门子（Siemens）公司的一个通信节点。 Siemens SIMATIC CN 4100 V5.0之前版本存在安全漏洞，该漏洞源于处理大量TCP SYN数据包时容易受到资源耗尽，可能导致拒绝服务。
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 |
|---|---|---|---|---|
| Siemens | SIMATIC CN 4100 | 0 ~ V5.0 | - |
II. Public POCs for CVE-2026-22925
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Siemens · 2026-05-12 · 20 CVEs total
| CVE-2025-40949 | 9.1 CRITICAL | Siemens多款产品 操作系统命令注入漏洞 |
| CVE-2026-22924 | 9.1 CRITICAL | Siemens SIMATIC CN 4100 访问控制错误漏洞 |
| CVE-2026-25786 | 9.1 CRITICAL | Siemens多款产品 跨站脚本漏洞 |
| CVE-2026-25787 | 9.1 CRITICAL | Siemens SIMATIC 跨站脚本漏洞 |
| CVE-2026-41551 | 9.1 CRITICAL | Siemens ROS# 安全漏洞 |
| CVE-2025-40946 | 8.3 HIGH | Siemens多款产品 安全漏洞 |
| CVE-2026-44412 | 7.8 HIGH | Siemens Solid Edge 安全漏洞 |
| CVE-2026-44411 | 7.8 HIGH | Siemens Solid Edge 缓冲区错误漏洞 |
| CVE-2026-27662 | 7.7 HIGH | Siemens SIMATIC HMI Comfort Panels 安全漏洞 |
| CVE-2025-40833 | 7.5 HIGH | Siemens多款产品 代码问题漏洞 |
| CVE-2025-40947 | 7.5 HIGH | Siemens RUGGEDCOM 操作系统命令注入漏洞 |
| CVE-2026-33893 | 7.5 HIGH | Siemens多款产品 信任管理问题漏洞 |
| CVE-2026-33862 | 7.3 HIGH | Siemens Teamcenter 跨站脚本漏洞 |
| CVE-2026-25789 | 7.1 HIGH | Siemens多款产品 跨站脚本漏洞 |
| CVE-2025-40948 | 6.8 MEDIUM | Siemens多款产品 参数注入漏洞 |
| CVE-2026-41125 | 6.0 MEDIUM | Siemens多款产品 SQL注入漏洞 |
| CVE-2024-54017 | 5.3 MEDIUM | Siemens SIPROTEC 5 安全漏洞 |
| CVE-2026-42177 | 5.3 MEDIUM | linux-entra-sso: PRT SSO cookie can leak to attacker-controlled hosts when broad host perm |
| CVE-2025-12659 | Heap-based buffer overflow in Siemens Simcenter Femap |
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V. Comments for CVE-2026-22925
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