CVE-2025-21212— Internet Connection Sharing (ICS) Denial of Service Vulnerability
Quick assessment
Affected
Microsoft Windows 10 Version 1607
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Microsoft Windows是美国微软（Microsoft）公司的一套个人设备使用的操作系统。 Microsoft Windows存在缓冲区错误漏洞。攻击者利用该漏洞导致系统拒绝服务。以下产品和版本受到影响：Windows 10 Version 1809 for 32-bit Systems,Windows 10 Version 1809 for x64-based Systems,Windows Server 2019,Windows Server 2019 (Server Core instal
Possible ATT&CK Techniques 1 AI
T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2025-21212
Vulnerability Information
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Vulnerability Title
Internet Connection Sharing (ICS) Denial of Service Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Internet Connection Sharing (ICS) Denial of Service Vulnerability
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft Windows 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Windows是美国微软（Microsoft）公司的一套个人设备使用的操作系统。 Microsoft Windows存在缓冲区错误漏洞。攻击者利用该漏洞导致系统拒绝服务。以下产品和版本受到影响：Windows 10 Version 1809 for 32-bit Systems,Windows 10 Version 1809 for x64-based Systems,Windows Server 2019,Windows Server 2019 (Server Core instal
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 |
|---|---|---|---|---|
| Microsoft | Windows 10 Version 1607 | 10.0.14393.0 ~ 10.0.14393.7785 | - |
|
| Microsoft | Windows 10 Version 1809 | 10.0.17763.0 ~ 10.0.17763.6893 | - |
|
| Microsoft | Windows 10 Version 21H2 | 10.0.19044.0 ~ 10.0.19044.5487 | - |
|
| Microsoft | Windows 10 Version 22H2 | 10.0.19045.0 ~ 10.0.19045.5487 | - |
|
| Microsoft | Windows 11 version 22H2 | 10.0.22621.0 ~ 10.0.22621.4890 | - |
|
| Microsoft | Windows 11 version 22H3 | 10.0.22631.0 ~ 10.0.22631.4890 | - |
|
| Microsoft | Windows 11 Version 23H2 | 10.0.22631.0 ~ 10.0.22631.4890 | - |
|
| Microsoft | Windows 11 Version 24H2 | 10.0.26100.0 ~ 10.0.26100.3194 | - |
|
| Microsoft | Windows Server 2016 | 10.0.14393.0 ~ 10.0.14393.7785 | - |
|
| Microsoft | Windows Server 2016 (Server Core installation) | 10.0.14393.0 ~ 10.0.14393.7785 | - |
|
| Microsoft | Windows Server 2019 | 10.0.17763.0 ~ 10.0.17763.6893 | - |
|
| Microsoft | Windows Server 2019 (Server Core installation) | 10.0.17763.0 ~ 10.0.17763.6893 | - |
|
| Microsoft | Windows Server 2022 | 10.0.20348.0 ~ 10.0.20348.3207 | - |
|
| Microsoft | Windows Server 2022, 23H2 Edition (Server Core installation) | 10.0.25398.0 ~ 10.0.25398.1425 | - |
|
| Microsoft | Windows Server 2025 | 10.0.26100.0 ~ 10.0.26100.3194 | - |
|
| Microsoft | Windows Server 2025 (Server Core installation) | 10.0.26100.0 ~ 10.0.26100.3194 | - |
|
II. Public POCs for CVE-2025-21212
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2025-21212 (1)
Same Patch Batch · Microsoft · 2025-02-11 · 55 CVEs total
| CVE-2025-21198 | 9.0 CRITICAL | Microsoft High Performance Compute (HPC) Pack Remote Code Execution Vulnerability |
| CVE-2025-21406 | 8.8 HIGH | Windows Telephony Service Remote Code Execution Vulnerability |
| CVE-2025-21410 | 8.8 HIGH | Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability |
| CVE-2025-21407 | 8.8 HIGH | Windows Telephony Service Remote Code Execution Vulnerability |
| CVE-2025-21200 | 8.8 HIGH | Windows Telephony Service Remote Code Execution Vulnerability |
| CVE-2025-21190 | 8.8 HIGH | Windows Telephony Service Remote Code Execution Vulnerability |
| CVE-2025-21201 | 8.8 HIGH | Windows Telephony Server Remote Code Execution Vulnerability |
| CVE-2025-21368 | 8.8 HIGH | Microsoft Digest Authentication Remote Code Execution Vulnerability |
| CVE-2025-21369 | 8.8 HIGH | Microsoft Digest Authentication Remote Code Execution Vulnerability |
| CVE-2025-21208 | 8.8 HIGH | Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability |
| CVE-2025-21371 | 8.8 HIGH | Windows Telephony Service Remote Code Execution Vulnerability |
| CVE-2025-21376 | 8.1 HIGH | Windows Lightweight Directory Access Protocol (LDAP) Remote Code Execution Vulnerability |
| CVE-2025-21400 | 8.0 HIGH | Microsoft SharePoint Server Remote Code Execution Vulnerability |
| CVE-2025-21386 | 7.8 HIGH | Microsoft Excel Remote Code Execution Vulnerability |
| CVE-2025-21392 | 7.8 HIGH | Microsoft Office Remote Code Execution Vulnerability |
| CVE-2025-21387 | 7.8 HIGH | Microsoft Excel Remote Code Execution Vulnerability |
| CVE-2025-21359 | 7.8 HIGH | Windows Kernel Security Feature Bypass Vulnerability |
| CVE-2025-21358 | 7.8 HIGH | Windows Core Messaging Elevation of Privileges Vulnerability |
| CVE-2025-21367 | 7.8 HIGH | Windows Win32 Kernel Subsystem Elevation of Privilege Vulnerability |
| CVE-2025-21381 | 7.8 HIGH | Microsoft Excel Remote Code Execution Vulnerability |
Showing top 20 of 55 CVEs. View all on vendor page → →
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V. Comments for CVE-2025-21212
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