CVE-2026-22924
Possible ATT&CK Techniques 2AI
T1190 · Exploit Public-Facing Application T1499 · Endpoint Denial of ServiceAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Siemens | SIMATIC CN 4100 | < V5.0 | affected |
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I. Basic Information for CVE-2026-22924
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 does not properly restrict unauthenticated connections and is susceptible to resource exhaustion conditions. This could allow an attacker to disrupt normal operations or perform unauthorized actions, potentially impacting system availability and integrity.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
关键功能的认证机制缺失
Source: NVD (National Vulnerability Database)
Vulnerability Title
Siemens SIMATIC CN 4100 访问控制错误漏洞
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之前版本存在访问控制错误漏洞，该漏洞源于未正确限制未经验证的连接，可能导致资源耗尽。
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-2026-22924
| # | POC Description | Source Link | Shenlong Link |
|---|
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No public POC found.
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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-2026-25786 | 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-2026-22925 | 7.5 HIGH | Siemens SIMATIC CN 4100 安全漏洞 |
| 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 |
IV. Related Vulnerabilities
Same weakness: CWE-306
- CVE-2026-45397
Open WebUI: Unauthenticated RAG Configuration Disclosure - CVE-2026-45248
Hedera Guardian Authentication Bypass Information Disclosure - CVE-2026-44592
Gradient: Unauthenticated worker on /proto → arbitrary NAR w - CVE-2026-42283
DevSpace UI Server WebSocket CheckOrigin does not validate s - CVE-2025-62619
AMD Processors 访问控制错误漏洞
V. Comments for CVE-2026-22924
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