January 2026 Microsoft Patch Tuesday Summary

Date:

Share post:

Azure Connected Machine Agent Elevation of Privilege Vulnerability


CVE-2026-21224

No

No

Important

7.8

6.8


Azure Core shared client library for Python Remote Code Execution Vulnerability


CVE-2026-21226

No

No

Important

7.5

6.5


Capability Access Management Service (camsvc) Elevation of Privilege Vulnerability


CVE-2026-20815

No

No

Important

7.0

6.1


CVE-2026-20830

No

No

Important

7.0

6.1


CVE-2026-21221

No

No

Important

7.0

6.1


Capability Access Management Service (camsvc) Information Disclosure Vulnerability


CVE-2026-20835

No

No

Important

5.5

4.8


CVE-2026-20851

No

No

Important

6.2

5.4


Chromium: CVE-2026-0628 Insufficient policy enforcement in WebView tag


CVE-2026-0628

No

No

 

 


Desktop Window Manager Information Disclosure Vulnerability


CVE-2026-20805

No

Yes

Important

5.5

4.8


Desktop Windows Manager Elevation of Privilege Vulnerability


CVE-2026-20871

No

No

Important

7.8

6.8


DirectX Graphics Kernel Elevation of Privilege Vulnerability


CVE-2026-20814

No

No

Important

7.0

6.1


CVE-2026-20836

No

No

Important

7.0

6.1


Dynamic Root of Trust for Measurement (DRTM) Information Disclosure Vulnerability


CVE-2026-20962

No

No

Important

4.4

3.9


Host Process for Windows Tasks Elevation of Privilege Vulnerability


CVE-2026-20941

No

No

Important

7.8

6.8


Inbox COM Objects (Global Memory) Remote Code Execution Vulnerability


CVE-2026-21219

No

No

Important

7.0

6.1


LDAPTampering Vulnerability


CVE-2026-20812

No

No

Important

6.5

5.7


Microsoft DWM Core Library Elevation of Privilege Vulnerability


CVE-2026-20842

No

No

Important

7.0

6.1


Microsoft Excel Remote Code Execution Vulnerability


CVE-2026-20946

No

No

Important

7.8

6.8


CVE-2026-20955

No

No

Critical

7.8

6.8


CVE-2026-20956

No

No

Important

7.8

6.8


CVE-2026-20950

No

No

Important

7.8

6.8


CVE-2026-20957

No

No

Critical

7.8

6.8


Microsoft Excel Security Feature Bypass Vulnerability


CVE-2026-20949

No

No

Important

7.8

6.8


Microsoft Office Click-To-Run Elevation of Privilege Vulnerability


CVE-2026-20943

No

No

Important

7.0

6.1


Microsoft Office Remote Code Execution Vulnerability


CVE-2026-20953

No

No

Critical

8.4

7.3


CVE-2026-20952

No

No

Critical

8.4

7.3


Microsoft SQL Server Elevation of Privilege Vulnerability


CVE-2026-20803

No

No

Important

7.2

6.3


Microsoft SharePoint Information Disclosure Vulnerability


CVE-2026-20958

No

No

Important

5.4

4.7


Microsoft SharePoint Remote Code Execution Vulnerability


CVE-2026-20963

No

No

Important

8.8

7.7


Microsoft SharePoint Server Remote Code Execution Vulnerability


CVE-2026-20951

No

No

Important

7.8

6.8


CVE-2026-20947

No

No

Important

8.8

7.7


Microsoft SharePoint Server Spoofing Vulnerability


CVE-2026-20959

No

No

Important

4.6

4.0


Microsoft Windows File Explorer Spoofing Vulnerability


CVE-2026-20847

No

No

Important

6.5

5.7


Microsoft Word Remote Code Execution Vulnerability


CVE-2026-20944

No

No

Critical

8.4

7.3


CVE-2026-20948

No

No

Important

7.8

6.8


NTLM Hash Disclosure Spoofing Vulnerability


CVE-2026-20925

No

No

Important

6.5

5.7


CVE-2026-20872

No

No

Important

6.5

5.7


Remote Procedure Call Information Disclosure Vulnerability


CVE-2026-20821

No

No

Important

6.2

5.4


Secure Boot Certificate Expiration Security Feature Bypass Vulnerability


CVE-2026-21265

Yes

No

Important

6.4

5.6


TPM Trustlet Information Disclosure Vulnerability


CVE-2026-20829

No

No

Important

5.5

4.8


Tablet Windows User Interface (TWINUI) Subsystem Information Disclosure Vulnerability


CVE-2026-20826

No

No

Important

7.8

6.8


CVE-2026-20827

No

No

Important

5.5

4.8


Win32k Elevation of Privilege Vulnerability


CVE-2026-20811

No

No

Important

7.8

6.8


CVE-2026-20920

No

No

Important

7.8

6.8


CVE-2026-20863

No

No

Important

7.0

6.1


Windows Admin Center Elevation of Privilege Vulnerability


CVE-2026-20965

No

No

Important

7.5

6.5


Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability


CVE-2026-20810

No

No

Important

7.8

6.8


CVE-2026-20831

No

No

Important

7.8

6.8


CVE-2026-20860

No

No

Important

7.8

6.8


Windows Client-Side Caching (CSC) Service Information Disclosure Vulnerability


CVE-2026-20839

No

No

Important

5.5

4.8


Windows Clipboard Server Elevation of Privilege Vulnerability


CVE-2026-20844

No

No

Important

7.4

6.4


Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability


CVE-2026-20857

No

No

Important

7.8

6.8


CVE-2026-20940

No

No

Important

7.8

6.8


Windows Common Log File System Driver Elevation of Privilege Vulnerability


CVE-2026-20820

No

No

Important

7.8

6.8


Windows Connected Devices Platform Service Elevation of Privilege Vulnerability


CVE-2026-20864

No

No

Important

7.8

6.8


Windows Deployment Services Remote Code Execution Vulnerability


CVE-2026-0386

No

No

Important

7.5

6.5


Windows Error Reporting Service Elevation of Privilege Vulnerability


CVE-2026-20817

No

No

Important

7.8

6.8


Windows File Explorer Elevation of Privilege Vulnerability


CVE-2026-20808

No

No

Important

7.0

6.1


Windows File Explorer Information Disclosure Vulnerability


CVE-2026-20823

No

No

Important

5.5

4.8


CVE-2026-20932

No

No

Important

5.5

4.8


CVE-2026-20937

No

No

Important

5.5

4.8


CVE-2026-20939

No

No

Important

5.5

4.8


Windows Graphics Component Elevation of Privilege Vulnerability


CVE-2026-20822

No

No

Critical

7.8

6.8


Windows HTTP.sys Elevation of Privilege Vulnerability


CVE-2026-20929

No

No

Important

7.5

6.5


Windows Hello Tampering Vulnerability


CVE-2026-20804

No

No

Important

7.7

6.7


CVE-2026-20852

No

No

Important

7.7

6.7


Windows Hyper-V Information Disclosure Vulnerability


CVE-2026-20825

No

No

Important

4.4

3.9


Windows Installer Elevation of Privilege Vulnerability


CVE-2026-20816

No

No

Important

7.8

6.8


Windows Kerberos Elevation of Privilege Vulnerability


CVE-2026-20849

No

No

Important

7.5

6.5


Windows Kerberos Information Disclosure Vulnerability


CVE-2026-20833

No

No

Important

5.5

4.8


Windows Kernel Information Disclosure Vulnerability


CVE-2026-20818

No

No

Important

6.2

5.4


CVE-2026-20838

No

No

Important

5.5

4.8


Windows Kernel Memory Elevation of Privilege Vulnerability


CVE-2026-20809

No

No

Important

7.8

6.8


Windows Kernel-Mode Driver Elevation of Privilege Vulnerability


CVE-2026-20859

No

No

Important

7.8

6.8


Windows Local Security Authority Subsystem Service (LSASS) Denial of Service Vulnerability


CVE-2026-20875

No

No

Important

7.5

6.5


Windows Local Security Authority Subsystem Service (LSASS) Remote Code Execution Vulnerability


CVE-2026-20854

No

No

Critical

7.5

6.5


Windows Local Session Manager (LSM) Elevation of Privilege Vulnerability


CVE-2026-20869

No

No

Important

7.0

6.1


Windows Management Services Elevation of Privilege Vulnerability


CVE-2026-20858

No

No

Important

7.8

6.9


CVE-2026-20865

No

No

Important

7.8

6.8


CVE-2026-20877

No

No

Important

7.8

6.8


CVE-2026-20918

No

No

Important

7.8

6.8


CVE-2026-20923

No

No

Important

7.8

6.8


CVE-2026-20924

No

No

Important

7.8

6.8


CVE-2026-20861

No

No

Important

7.8

6.8


CVE-2026-20866

No

No

Important

7.8

6.8


CVE-2026-20867

No

No

Important

7.8

6.8


CVE-2026-20873

No

No

Important

7.8

6.8


CVE-2026-20874

No

No

Important

7.8

6.8


Windows Management Services Information Disclosure Vulnerability


CVE-2026-20862

No

No

Important

5.5

4.8


Windows Media Remote Code Execution Vulnerability


CVE-2026-20837

No

No

Important

7.8

6.8


Windows NDIS Information Disclosure Vulnerability


CVE-2026-20936

No

No

Important

4.3

3.8


Windows NTFS Remote Code Execution Vulnerability


CVE-2026-20840

No

No

Important

7.8

6.8


CVE-2026-20922

No

No

Important

7.8

6.8


Windows Remote Assistance Security Feature Bypass Vulnerability


CVE-2026-20824

No

No

Important

5.5

4.8


Windows Remote Procedure Call Interface Definition Language (IDL) Elevation of Privilege Vulnerability


CVE-2026-20832

No

No

Important

7.8

6.8


Windows Routing and Remote Access Service (RRAS) Elevation of Privilege Vulnerability


CVE-2026-20843

No

No

Important

7.8

6.8


Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability


CVE-2026-20868

No

No

Important

8.8

7.7


Windows SMB Server Denial of Service Vulnerability


CVE-2026-20927

No

No

Important

5.3

4.6


Windows SMB Server Elevation of Privilege Vulnerability


CVE-2026-20919

No

No

Important

7.5

6.5


CVE-2026-20921

No

No

Important

7.5

6.5


CVE-2026-20926

No

No

Important

7.5

6.5


CVE-2026-20934

No

No

Important

7.5

6.5


CVE-2026-20848

No

No

Important

7.5

6.5


Windows Server Update Service (WSUS) Remote Code Execution Vulnerability


CVE-2026-20856

No

No

Important

8.1

7.1


Windows Spoofing Vulnerability


CVE-2026-20834

No

No

Important

4.6

4.0


Windows Telephony Service Elevation of Privilege Vulnerability


CVE-2026-20931

No

No

Important

8.0

7.0


Windows Virtualization-Based Security (VBS) Enclave Elevation of Privilege Vulnerability


CVE-2026-20876

No

No

Critical

6.7

5.8


CVE-2026-20938

No

No

Important

7.8

6.8


Windows Virtualization-Based Security (VBS) Information Disclosure Vulnerability


CVE-2026-20819

No

No

Important

5.5

4.8


CVE-2026-20935

No

No

Important

6.2

5.4


Windows WalletService Elevation of Privilege Vulnerability


CVE-2026-20853

No

No

Important

7.4

6.4


Windows Win32 Kernel Subsystem Elevation of Privilege Vulnerability


CVE-2026-20870

No

No

Important

7.8

6.8


Windows rndismp6.sys Information Disclosure Vulnerability


CVE-2026-20828

No

No

Important

4.6

4.0


Source link

spot_img

Related articles

Rick and Morty showrunner reveals his new dystopian sci-fi show

Mike McMahan has quickly become one of our favorite showrunners when it comes to adult animated series. After...

Why Egnyte keeps hiring junior engineers despite the rise of AI coding tools

Egnyte, the $1.5 billion cloud content governance company, has embedded AI coding tools across its global team of...