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CVE-2026-21513— MSHTML Framework Security Feature Bypass Vulnerability

CVSS 8.8 · High KEV EPSS 28.11% · P97
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I. Basic Information for CVE-2026-21513

Vulnerability Information
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Vulnerability Title
MSHTML Framework Security Feature Bypass Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
Protection mechanism failure in MSHTML Framework allows an unauthorized attacker to bypass a security feature over a network.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
保护机制失效
Source: NVD (National Vulnerability Database)
Vulnerability Title
Microsoft MSHTML Framework 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft MSHTML Framework是美国微软（Microsoft）公司的一个用于解析和呈现HTML文档的软件框架。 Microsoft MSHTML Framework存在安全漏洞。攻击者利用该漏洞可以绕过某些功能。以下产品和版本受到影响：Windows Server 2016 (Server Core installation),Windows 10 Version 1607 for x64-based Systems,Windows Server 2012,Windows 10 Ve
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)

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Affected Products

VendorProductAffected VersionsCPESubscribe
MicrosoftWindows 10 Version 1607 10.0.14393.0 ~ 10.0.14393.8868 -
MicrosoftWindows 10 Version 1809 10.0.17763.0 ~ 10.0.17763.8389 -
MicrosoftWindows 10 Version 21H2 10.0.19044.0 ~ 10.0.19044.6937 -
MicrosoftWindows 10 Version 22H2 10.0.19045.0 ~ 10.0.19045.6937 -
MicrosoftWindows 11 version 22H3 10.0.22631.0 ~ 10.0.22631.6649 -
MicrosoftWindows 11 Version 23H2 10.0.22631.0 ~ 10.0.22631.6649 -
MicrosoftWindows 11 Version 24H2 10.0.26100.0 ~ 10.0.26100.7840 -
MicrosoftWindows 11 Version 25H2 10.0.26200.0 ~ 10.0.26200.7840 -
MicrosoftWindows 11 version 26H1 10.0.28000.0 ~ 10.0.28000.1575 -
MicrosoftWindows 11 Version 26H1 10.0.28000.0 ~ 10.0.28000.1575 -
MicrosoftWindows Server 2012 6.2.9200.0 ~ 6.2.9200.25923 -
MicrosoftWindows Server 2012 (Server Core installation) 6.2.9200.0 ~ 6.2.9200.25923 -
MicrosoftWindows Server 2012 R2 6.3.9600.0 ~ 6.3.9600.23022 -
MicrosoftWindows Server 2012 R2 (Server Core installation) 6.3.9600.0 ~ 6.3.9600.23022 -
MicrosoftWindows Server 2016 10.0.14393.0 ~ 10.0.14393.8868 -
MicrosoftWindows Server 2016 (Server Core installation) 10.0.14393.0 ~ 10.0.14393.8868 -
MicrosoftWindows Server 2019 10.0.17763.0 ~ 10.0.17763.8389 -
MicrosoftWindows Server 2019 (Server Core installation) 10.0.17763.0 ~ 10.0.17763.8389 -
MicrosoftWindows Server 2022 10.0.20348.0 ~ 10.0.20348.4773 -
MicrosoftWindows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.0 ~ 10.0.25398.2149 -
MicrosoftWindows Server 2025 10.0.26100.0 ~ 10.0.26100.32370 -
MicrosoftWindows Server 2025 (Server Core installation) 10.0.26100.0 ~ 10.0.26100.32370 -

II. Public POCs for CVE-2026-21513

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III. Intelligence Information for CVE-2026-21513

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Same Patch Batch · Microsoft · 2026-02-10 · 54 CVEs total

CVE-2026-215319.8 CRITICALAzure SDK for Python Remote Code Execution Vulnerability
CVE-2026-215188.8 HIGHGitHub Copilot and Visual Studio Code Security Feature Bypass Vulnerability
CVE-2026-212558.8 HIGHWindows Hyper-V Security Feature Bypass Vulnerability
CVE-2026-212568.8 HIGHGitHub Copilot and Visual Studio Remote Code Execution Vulnerability
CVE-2026-215108.8 HIGHWindows Shell Security Feature Bypass Vulnerability
CVE-2026-215378.8 HIGHMicrosoft Defender for Endpoint Linux Extension Remote Code Execution Vulnerability
CVE-2026-215168.8 HIGHGitHub Copilot for Jetbrains Remote Code Execution Vulnerability
CVE-2026-212288.1 HIGHAzure Local Remote Code Execution Vulnerability
CVE-2026-215238.0 HIGHGitHub Copilot and Visual Studio Code Remote Code Execution Vulnerability
CVE-2026-212298.0 HIGHPower BI Remote Code Execution Vulnerability
CVE-2026-212578.0 HIGHGitHub Copilot and Visual Studio Elevation of Privilege Vulnerability
CVE-2026-212397.8 HIGHWindows Kernel Elevation of Privilege Vulnerability
CVE-2026-215147.8 HIGHMicrosoft Word Security Feature Bypass Vulnerability
CVE-2026-212407.8 HIGHWindows HTTP.sys Elevation of Privilege Vulnerability
CVE-2026-208417.8 HIGHWindows Notepad App Remote Code Execution Vulnerability
CVE-2026-215337.8 HIGHWindows Remote Desktop Services Elevation of Privilege Vulnerability
CVE-2026-212367.8 HIGHWindows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
CVE-2026-212467.8 HIGHWindows Graphics Component Elevation of Privilege Vulnerability
CVE-2026-212597.8 HIGHMicrosoft Excel Elevation of Privilege Vulnerability
CVE-2026-215197.8 HIGHDesktop Window Manager Elevation of Privilege Vulnerability

Showing top 20 of 54 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Windows 10 Version 1607
Same vendor: Microsoft
Same weakness: CWE-693

V. Comments for CVE-2026-21513

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