CVE-2026-20838— Windows Kernel Information Disclosure Vulnerability
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I. Basic Information for CVE-2026-20838
Vulnerability Information
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Vulnerability Title
Windows Kernel Information Disclosure Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
Generation of error message containing sensitive information in Windows Kernel allows an authorized attacker to disclose information locally.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
通过错误消息导致的信息暴露
Source: NVD (National Vulnerability Database)
Vulnerability Title
Microsoft Windows Kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Windows Kernel是美国微软（Microsoft）公司的Windows操作系统的内核。 Microsoft Windows Kernel存在安全漏洞。攻击者利用该漏洞可以远程执行代码。以下产品和版本受到影响：Windows Server 2022,Windows Server 2022 (Server Core installation),Windows Server 2025 (Server Core installation),Windows 11 Version 25H
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 11 version 22H3 | 10.0.22631.0 ~ 10.0.22631.6491 | - | |
| Microsoft | Windows 11 Version 23H2 | 10.0.22631.0 ~ 10.0.22631.6491 | - | |
| Microsoft | Windows 11 Version 24H2 | 10.0.26100.0 ~ 10.0.26100.7623 | - | |
| Microsoft | Windows 11 Version 25H2 | 10.0.26200.0 ~ 10.0.26200.7623 | - | |
| Microsoft | Windows Server 2022 | 10.0.20348.0 ~ 10.0.20348.4648 | - | |
| Microsoft | Windows Server 2022, 23H2 Edition (Server Core installation) | 10.0.25398.0 ~ 10.0.25398.2092 | - | |
| Microsoft | Windows Server 2025 | 10.0.26100.0 ~ 10.0.26100.32230 | - | |
| Microsoft | Windows Server 2025 (Server Core installation) | 10.0.26100.0 ~ 10.0.26100.32230 | - |
II. Public POCs for CVE-2026-20838
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Microsoft · 2026-01-13 · 112 CVEs total
| CVE-2026-20963 | 9.8 CRITICAL | Microsoft SharePoint Remote Code Execution Vulnerability |
| CVE-2026-20947 | 8.8 HIGH | Microsoft SharePoint Server Remote Code Execution Vulnerability |
| CVE-2026-20868 | 8.8 HIGH | Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability |
| CVE-2026-20952 | 8.4 HIGH | Microsoft Office Remote Code Execution Vulnerability |
| CVE-2026-20944 | 8.4 HIGH | Microsoft Word Remote Code Execution Vulnerability |
| CVE-2026-20953 | 8.4 HIGH | Microsoft Office Remote Code Execution Vulnerability |
| CVE-2026-20856 | 8.1 HIGH | Windows Server Update Service (WSUS) Remote Code Execution Vulnerability |
| CVE-2026-20931 | 8.0 HIGH | Windows Telephony Service Elevation of Privilege Vulnerability |
| CVE-2026-20832 | 7.8 HIGH | Windows Remote Procedure Call Interface Definition Language (IDL) Elevation of Privilege V |
| CVE-2026-20924 | 7.8 HIGH | Windows Management Services Elevation of Privilege Vulnerability |
| CVE-2026-20922 | 7.8 HIGH | Windows NTFS Remote Code Execution Vulnerability |
| CVE-2026-20843 | 7.8 HIGH | Windows Routing and Remote Access Service (RRAS) Elevation of Privilege Vulnerability |
| CVE-2026-20920 | 7.8 HIGH | Win32k Elevation of Privilege Vulnerability |
| CVE-2026-20837 | 7.8 HIGH | Windows Media Remote Code Execution Vulnerability |
| CVE-2026-21224 | 7.8 HIGH | Azure Connected Machine Agent Elevation of Privilege Vulnerability |
| CVE-2026-20840 | 7.8 HIGH | Windows NTFS Remote Code Execution Vulnerability |
| CVE-2026-20956 | 7.8 HIGH | Microsoft Excel Remote Code Execution Vulnerability |
| CVE-2026-20877 | 7.8 HIGH | Windows Management Services Elevation of Privilege Vulnerability |
| CVE-2026-20951 | 7.8 HIGH | Microsoft SharePoint Server Remote Code Execution Vulnerability |
| CVE-2026-20946 | 7.8 HIGH | Microsoft Excel Remote Code Execution Vulnerability |
Showing top 20 of 112 CVEs. View all on vendor page → →
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