Microsoft April 2025 Security Updates

April 2025 Security Updates
This release consists of the following 126 Microsoft CVEs:

Tag CVE Base Score CVSS Vector Exploitability FAQs? Workarounds? Mitigations?
Visual Studio Code CVE-2025-20570
Windows Standards-Based Storage Management Service CVE-2025-21174
Windows Local Security Authority (LSA) CVE-2025-21191
Windows NTFS CVE-2025-21197
Windows Routing and Remote Access Service (RRAS) CVE-2025-21203
Windows Update Stack CVE-2025-21204
Windows Telephony Service CVE-2025-21205
Windows Telephony Service CVE-2025-21221
Windows Telephony Service CVE-2025-21222
Windows DWM Core Library CVE-2025-24058
Windows DWM Core Library CVE-2025-24060
Windows DWM Core Library CVE-2025-24062
Windows DWM Core Library CVE-2025-24073
Windows DWM Core Library CVE-2025-24074
Microsoft Edge (Chromium-based) CVE-2025-25000
Microsoft Edge (Chromium-based) CVE-2025-25001
Azure Local Cluster CVE-2025-25002
Azure Local Cluster CVE-2025-26628
Windows Hello CVE-2025-26635
Windows BitLocker CVE-2025-26637
Windows USB Print Driver CVE-2025-26639
Windows Digital Media CVE-2025-26640
Windows Cryptographic Services CVE-2025-26641
Microsoft Office CVE-2025-26642
Windows Hello CVE-2025-26644
Windows Kerberos CVE-2025-26647
Windows Kernel CVE-2025-26648
Windows Secure Channel CVE-2025-26649
Windows Local Session Manager (LSM) CVE-2025-26651
Windows Standards-Based Storage Management Service CVE-2025-26652
Windows LDAP - Lightweight Directory Access Protocol CVE-2025-26663
Windows Routing and Remote Access Service (RRAS) CVE-2025-26664
Windows upnphost.dll CVE-2025-26665
Windows Media CVE-2025-26666
Windows Routing and Remote Access Service (RRAS) CVE-2025-26667
Windows Routing and Remote Access Service (RRAS) CVE-2025-26668
Windows Routing and Remote Access Service (RRAS) CVE-2025-26669
Windows LDAP - Lightweight Directory Access Protocol CVE-2025-26670
Windows Remote Desktop Services CVE-2025-26671
Windows Routing and Remote Access Service (RRAS) CVE-2025-26672
Windows LDAP - Lightweight Directory Access Protocol CVE-2025-26673
Windows Media CVE-2025-26674
Windows Subsystem for Linux CVE-2025-26675
Windows Routing and Remote Access Service (RRAS) CVE-2025-26676
Windows Defender Application Control (WDAC) CVE-2025-26678
RPC Endpoint Mapper Service CVE-2025-26679
Windows Standards-Based Storage Management Service CVE-2025-26680
Windows Win32K - GRFX CVE-2025-26681
ASP.NET Core CVE-2025-26682
Windows TCP/IP CVE-2025-26686
Windows Win32K - GRFX CVE-2025-26687
Microsoft Virtual Hard Drive CVE-2025-26688
Windows Digital Media CVE-2025-27467
Windows LDAP - Lightweight Directory Access Protocol CVE-2025-27469
Windows Standards-Based Storage Management Service CVE-2025-27470
Microsoft Streaming Service CVE-2025-27471
Windows Mark of the Web (MOTW) CVE-2025-27472
Windows HTTP.sys CVE-2025-27473
Windows Routing and Remote Access Service (RRAS) CVE-2025-27474
Windows Update Stack CVE-2025-27475
Windows Digital Media CVE-2025-27476
Windows Telephony Service CVE-2025-27477
Windows Local Security Authority (LSA) CVE-2025-27478
Windows Kerberos CVE-2025-27479
Remote Desktop Gateway Service CVE-2025-27480
Windows Telephony Service CVE-2025-27481
Remote Desktop Gateway Service CVE-2025-27482
Windows NTFS CVE-2025-27483
Windows Universal Plug and Play (UPnP) Device Host CVE-2025-27484
Windows Standards-Based Storage Management Service CVE-2025-27485
Windows Standards-Based Storage Management Service CVE-2025-27486
Remote Desktop Client CVE-2025-27487
Azure Local CVE-2025-27489
Windows Bluetooth Service CVE-2025-27490
Windows Hyper-V CVE-2025-27491
Windows Secure Channel CVE-2025-27492
Windows Installer CVE-2025-27727
Windows Kernel-Mode Drivers CVE-2025-27728
Windows Shell CVE-2025-27729
Windows Digital Media CVE-2025-27730
OpenSSH for Windows CVE-2025-27731
Windows Win32K - GRFX CVE-2025-27732
Windows NTFS CVE-2025-27733
Windows Virtualization-Based Security (VBS) Enclave CVE-2025-27735
Windows Power Dependency Coordinator CVE-2025-27736
Windows Security Zone Mapping CVE-2025-27737
Windows Resilient File System (ReFS) CVE-2025-27738
Windows Kernel CVE-2025-27739
Windows Active Directory Certificate Services CVE-2025-27740
Windows NTFS CVE-2025-27741
Windows NTFS CVE-2025-27742
System Center CVE-2025-27743
Microsoft Office CVE-2025-27744
Microsoft Office CVE-2025-27745
Microsoft Office CVE-2025-27746
Microsoft Office Word CVE-2025-27747
Microsoft Office CVE-2025-27748
Microsoft Office CVE-2025-27749
Microsoft Office Excel CVE-2025-27750
Microsoft Office Excel CVE-2025-27751
Microsoft Office Excel CVE-2025-27752
Microsoft Office CVE-2025-29791
Microsoft Office CVE-2025-29792
Microsoft Office SharePoint CVE-2025-29793
Microsoft Office SharePoint CVE-2025-29794
Microsoft Edge for iOS CVE-2025-29796
Microsoft AutoUpdate (MAU) CVE-2025-29800
Microsoft AutoUpdate (MAU) CVE-2025-29801
Visual Studio CVE-2025-29802
Visual Studio Tools for Applications and SQL Server Management Studio CVE-2025-29803
Visual Studio CVE-2025-29804
Outlook for Android CVE-2025-29805
Windows Cryptographic Services CVE-2025-29808
Windows Kerberos CVE-2025-29809
Active Directory Domain Services CVE-2025-29810
Windows Mobile Broadband CVE-2025-29811
Windows Kernel Memory CVE-2025-29812
Microsoft Edge (Chromium-based) CVE-2025-29815
Microsoft Office Word CVE-2025-29816
Power Automate CVE-2025-29817
Azure Portal Windows Admin Center CVE-2025-29819
Microsoft Office Word CVE-2025-29820
Dynamics Business Central CVE-2025-29821
Microsoft Office OneNote CVE-2025-29822
Microsoft Office Excel CVE-2025-29823
Windows Common Log File System Driver CVE-2025-29824

We are republishing 9 non-Microsoft CVEs:
CNA Tag CVE FAQs? Workarounds? Mitigations?
Chrome Microsoft Edge (Chromium-based) CVE-2025-3066
Chrome Microsoft Edge (Chromium-based) CVE-2025-3067
Chrome Microsoft Edge (Chromium-based) CVE-2025-3068
Chrome Microsoft Edge (Chromium-based) CVE-2025-3069
Chrome Microsoft Edge (Chromium-based) CVE-2025-3070
Chrome Microsoft Edge (Chromium-based) CVE-2025-3071
Chrome Microsoft Edge (Chromium-based) CVE-2025-3072
Chrome Microsoft Edge (Chromium-based) CVE-2025-3073
Chrome Microsoft Edge (Chromium-based) CVE-2025-3074

Security Update Guide Blog Posts
Date Blog Post
November 12, 2024 Toward greater transparency: Publishing machine-readable CSAF files
June 27, 2024 Toward greater transparency: Unveiling Cloud Service CVEs
April 9, 2024 Toward greater transparency: Security Update Guide now shares CWEs for CVEs
January 6, 2023 Publishing CBL-Mariner CVEs on the Security Update Guide CVRF API
January 11, 2022 Coming Soon: New Security Update Guide Notification System
February 9, 2021 Continuing to Listen: Good News about the Security Update Guide API
January 13, 2021 Security Update Guide Supports CVEs Assigned by Industry Partners
December 8, 2020 Security Update Guide: Let’s keep the conversation going
November 9, 2020 Vulnerability Descriptions in the New Version of the Security Update Guide

Relevant Resources

• The new Hotpatching feature is now generally available. Please see Hotpatching feature for Windows Server Azure Edition virtual machines (VMs) for more information.
• Windows 10 and Windows 11 updates are cumulative. The monthly security release includes all security fixes for vulnerabilities that affect Windows 10 and Windows 11, in addition to non-security updates. The updates are available via the Microsoft Update Catalog. For information on lifecycle and support dates for Windows 10 and Windows 11 operating systems, please see Windows Lifecycle Facts Sheet.
• Microsoft is improving Windows Release Notes. For more information, please see What's next for Windows release notes.
• A list of the latest servicing stack updates for each operating system can be found in ADV990001. This list will be updated whenever a new servicing stack update is released. It is important to install the latest servicing stack update.
• In addition to security changes for the vulnerabilities, updates include defense-in-depth updates to help improve security-related features.
• Customers running Windows Server 2008 R2, or Windows Server 2008 need to purchase the Extended Security Update to continue receiving security updates. See 4522133 for more information.

Known Issues
You can see these in more detail from the Deployments tab by selecting Known Issues column in the Edit Columns panel.

For more information about Windows Known Issues, please see Windows message center (links to currently-supported versions of Windows are in the left pane).

Known Issues
You can see these in more detail from the Deployments tab by selecting Known Issues column in the Edit Columns panel.

For more information about Windows Known Issues, please see Windows message center (links to currently-supported versions of Windows are in the left pane).

KB Article Applies To
5055518 Windows 10, version 21H2, Windows 10, version 22H2
5055519 Windows 10, version 1809, Windows Server 2019
5055523 Windows 11, version 24H2
5055526 Windows Server 2022
5055527 Windows Server 2022, 23H2 Edition (Server Core installation)
5055528 Windows 11, version 22H2, Windows 11, version 23H2
5055596 Windows Server 2008 (Security-only update)
5055609 Windows Server 2008 (Monthly Rollup)
Released: Apr 8, 2025
April 2025 Security Updates - Release Notes - Security Update Guide - Microsoft

 

CVEs have been published or revised in the Security Update Guide
April 11, 2025

These common vulnerabilities and exposures (CVEs) were recently published or revised in the Microsoft Security Update Guide:

CVE-2025-21204

• Title: Windows Process Activation Elevation of Privilege Vulnerability
• Version: 2.1
• Reason for revision: Added FAQ to explain that after installing the updates listed in the Security Updates table for your operating system, a new %systemdrive%\inetpub folder will be created on your device. **This folder should not be deleted regardless of whether Internet Information Services (IIS) is active on the target device.** This behavior is part of changes that increase protection and does not require any action from IT admins and end users. This is an informational change only.
• Originally released: April 8, 2025
• Last updated: April 10, 2025
• Aggregate CVE severity rating: Important
• Customer action required: Yes

CVE-2025-26647

• Title: Windows Kerberos Elevation of Privilege Vulnerability
• Version: 1.1
• Reason for revision: Updated FAQ information. This is an informational change only.
• Originally released: April 8, 2025
• Last updated: April 10, 2025
• Aggregate CVE severity rating: Important
• Customer action required: Yes

CVE-2025-27732

• Title: Windows Graphics Component Elevation of Privilege Vulnerability
• Version: 2.0
• Reason for revision: The security updates for Windows 10 for 32-bit Systems and Windows 10 for x64-based Systems are now available. See the Security Updates table for more information.
• Originally released: April 8, 2025
• Last updated: April 2, 2025
• Aggregate CVE severity rating: Important
• Customer action required: Yes

CVE-2025-27740

• Title: Active Directory Certificate Services Elevation of Privilege Vulnerability
• Version: 1.1
• Reason for revision: Updated FAQ information. This is an informational change only.
• Originally released: April 8, 2025
• Last updated: April 10, 2025
• Aggregate CVE severity rating: Important
• Customer action required: Yes

CVE-2025-27745

• Title: Microsoft Office Remote Code Execution Vulnerability
• Version: 2.0
• Reason for revision: To address a known issue that customers might experience after installing KB5002700 and that causes Microsoft Word, Microsoft Excel, and Microsoft Outlook to stop responding, Microsoft released KB5002623. Customers who have already installed KB5002700 must also install KB5002623 to correct the known issue. Customers who have not yet installed any updates must install both updates to correct the known issue. These updates can be installed in any order.
• Originally released: April 8, 2025
• Last updated: April 10, 2025
• Aggregate CVE severity rating: Critical
• Customer action required: Yes

CVE-2025-27747

• Title: Microsoft Word Remote Code Execution Vulnerability
• Version: 2.0
• Reason for revision: Revised CVE to inform customers that security update 5002692 is temporarily unavailable following some reports that the update can't be installed. We are currently investigating the issue and will notify customers via a revision to this CVE information when the issue is resolved.
• Originally released: April 8, 2025
• Last updated: April 10, 2025
• Aggregate CVE severity rating: Important
• Customer action required: Yes

CVE-2025-27748

• Title: Microsoft Office Remote Code Execution Vulnerability
• Version: 2.0
• Reason for revision: To address a known issue that customers might experience after installing KB5002700 and that causes Microsoft Word, Microsoft Excel, and Microsoft Outlook to stop responding, Microsoft released KB5002623. Customers who have already installed KB5002700 must also install KB5002623 to correct the known issue. Customers who have not yet installed any updates must install both updates to correct the known issue. These updates can be installed in any order.
• Originally released: April 8, 2025
• Last updated: April 10, 2025
• Aggregate CVE severity rating: Critical
• Customer action required: Yes

CVE-2025-27749

• Title: Microsoft Office Remote Code Execution Vulnerability
• Version: 2.0
• Reason for revision: To address a known issue that customers might experience after installing KB5002700 and that causes Microsoft Word, Microsoft Excel, and Microsoft Outlook to stop responding, Microsoft released KB5002623. Customers who have already installed KB5002700 must also install KB5002623 to correct the known issue. Customers who have not yet installed any updates must install both updates to correct the known issue. These updates can be installed in any order.
• Originally released: April 8, 2025
• Last updated: April 10, 2025
• Aggregate CVE severity rating: Critical
• Customer action required: Yes

CVE-2025-27752

• Title: Microsoft Excel Remote Code Execution Vulnerability
• Version: 2.0
• Reason for revision: To address a known issue that customers might experience after installing KB5002700 and that causes Microsoft Word, Microsoft Excel, and Microsoft Outlook to stop responding, Microsoft released KB5002623. Customers who have already installed KB5002700 must also install KB5002623 to correct the known issue. Customers who have not yet installed any updates must install both updates to correct the known issue. These updates can be installed in any order.
• Originally released: April 8, 2025
• Last updated: April 10, 2025
• Aggregate CVE severity rating: Critical
• Customer action required: Yes

CVE-2025-29791

• Title: Microsoft Excel Remote Code Execution Vulnerability
• Version: 2.0
• Reason for revision: To address a known issue that customers might experience after installing KB5002700 and that causes Microsoft Word, Microsoft Excel, and Microsoft Outlook to stop responding, Microsoft released KB5002623. Customers who have already installed KB5002700 must also install KB5002623 to correct the known issue. Customers who have not yet installed any updates must install both updates to correct the known issue. These updates can be installed in any order.
• Originally released: April 8, 2025
• Last updated: April 10, 2025
• Aggregate CVE severity rating: Critical
• Customer action required: Yes

CVE-2025-29792

• Title: Microsoft Office Elevation of Privilege Vulnerability
• Version: 2.0
• Reason for revision: To address a known issue that customers might experience after installing KB5002700 and that causes Microsoft Word, Microsoft Excel, and Microsoft Outlook to stop responding, Microsoft released KB5002623. Customers who have already installed KB5002700 must also install KB5002623 to correct the known issue. Customers who have not yet installed any updates must install both updates to correct the known issue. These updates can be installed in any order.
• Originally released: April 8, 2025
• Last updated: April 10, 2025
• Aggregate CVE severity rating: Important
• Customer action required: Yes

CVE-2025-29793

• Title: Microsoft SharePoint Remote Code Execution Vulnerability
• Version: 2.0
• Reason for revision: Revised CVE to inform customers that security update 5002692 is temporarily unavailable following some reports that the update can't be installed. We are currently investigating the issue and will notify customers via a revision to this CVE information when the issue is resolved.
• Originally released: April 8, 2025
• Last updated: April 10, 2025
• Aggregate CVE severity rating: Important
• Customer action required: Yes

CVE-2025-29794

• Title: Microsoft SharePoint Remote Code Execution Vulnerability
• Version: 2.0
• Reason for revision: Revised CVE to inform customers that security update 5002692 is temporarily unavailable following some reports that the update can't be installed. We are currently investigating the issue and will notify customers via a revision to this CVE information when the issue is resolved.
• Originally released: April 8, 2025
• Last updated: April 10, 2025
• Aggregate CVE severity rating: Important
• Customer action required: Yes

CVE-2025-29820

• Title: Microsoft Word Remote Code Execution Vulnerability
• Version: 2.0
• Reason for revision: Revised CVE to inform customers that security update 5002692 is temporarily unavailable following some reports that the update can't be installed. We are currently investigating the issue and will notify customers via a revision to this CVE information when the issue is resolved.
• Originally released: April 8, 2025
• Last updated: April 10, 2025
• Aggregate CVE severity rating: Important
• Customer action required: Yes

 

CVEs have been published or revised in the Security Update Guide
April 16, 2025

These common vulnerabilities and exposures (CVEs) were recently published or revised in the Microsoft Security Update Guide:

CVE-2023-44487

• Title: MITRE: CVE-2023-44487 HTTP/2 Rapid Reset Attack
• Version: 2.1
• Reason for revision: Corrected Build Numbers in the Security Updates table. This is an informational change only.
• Originally released: October 10, 2023
• Last updated: April 15, 2025
• Aggregate CVE severity rating: Important
• Customer action required: Yes

CVE-2024-21302

• Title: Windows Secure Kernel Mode Elevation of Privilege Vulnerability
• Version: 3.0
• Reason for revision: To comprehensively address CVE-2024-21302, Microsoft has released April 2025 security updates for all supported editions of Windows. Microsoft recommends that customers install the updates to be fully protected from the vulnerability. Customers whose systems are configured to receive automatic updates do not need to take any further action.
• Originally released: August 7, 2024
• Last updated: April 15, 2025
• Aggregate CVE severity rating: Important
• Customer action required: Yes

CVE-2025-27747

• Title: Microsoft Word Remote Code Execution Vulnerability
• Version: 4.0
• Reason for revision: The security update for SharePoint Enterprise Server 2016 (KB5002692) is now available. See the Security Updates table for more information.
• Originally released: April 8, 2025
• Last updated: April 15, 2025
• Aggregate CVE severity rating: Important
• Customer action required: Yes

CVE-2025-29793

• Title: Microsoft SharePoint Remote Code Execution Vulnerability
• Version: 3.0
• Reason for revision: The security update for SharePoint Enterprise Server 2016 (KB5002692) is now available. See the Security Updates table for more information.
• Originally released: April 8, 2025
• Last updated: April 15, 2025
• Aggregate CVE severity rating: Important
• Customer action required: Yes

CVE-2025-29794

• Title: Microsoft SharePoint Remote Code Execution Vulnerability
• Version: 3.0
• Reason for revision: The security update for SharePoint Enterprise Server 2016 (KB5002692) is now available. See the Security Updates table for more information.
• Originally released: April 8, 2025
• Last updated: April 15, 2025
• Aggregate CVE severity rating: Important
• Customer action required: Yes

CVE-2025-29817

• Title: Microsoft Power Automate Desktop Information Disclosure Vulnerability
• Version: 1.0
• Reason for revision: Information published.
• Originally released: April 15, 2025
• Last updated: April 15, 2025
• Aggregate CVE severity rating: Important
• Customer action required: Yes

CVE-2025-29820

• Title: Microsoft Word Remote Code Execution Vulnerability
• Version: 4.0
• Reason for revision: The security update for SharePoint Enterprise Server 2016 (KB5002692) is now available. See the Security Updates table for more information.
• Originally released: April 8, 2025
• Last updated: April 15, 2025
• Aggregate CVE severity rating: Important
• Customer action required: Yes

 

CVEs have been published or revised in the Security Update Guide
April 17, 2025

These common vulnerabilities and exposures (CVEs) were recently published or revised in the Microsoft Security Update Guide:

CVE-2025-3619

• Title: Chromium: CVE-2025-3619 Heap buffer overflow in Codecs
• Version: 1.0
• Reason for revision: Information published.
• Originally released: April 17, 2025
• Last updated: April 17, 2025
• Aggregate CVE severity rating:
• Customer action required: Yes

CVE-2025-3620

• Title: Chromium: CVE-2025-3620 Use after free in USB
• Version: 1.0
• Reason for revision: Information published.
• Originally released: April 17, 2025
• Last updated: April 17, 2025
• Aggregate CVE severity rating:
• Customer action required: Yes