Note
Applies to: All Visual Studio 2015 Update 3 editions except Integrated Shell and Build Tools.
Summary
A remote code execution vulnerability exists in Microsoft Visual Studio 2015 when the program incorrectly handles debug information. To learn more about the vulnerability, see CVE-2025-21172, CVE-2025-21176, and CVE-2025-21178.
How to obtain and install the update
Visual Studio 2015 Update 3
Method 1: Microsoft Download
The following file is available for download:
Download the hotfix package now.
Method 2: Microsoft Update Catalog
To get the standalone package for this update, go to the Microsoft Update Catalog website.
More information
Prerequisites
To apply this security update, you must have Visual Studio 2015 Update 3 installed.
Restart requirement
We recommend that you close Visual Studio 2015 before you install this security update. Otherwise, you may have to restart the computer after you apply this security update if a file that is being updated is open or in use by Visual Studio.
Security update replacement information
This security update supersedes KB5029366.
Security update deployment information
For deployment information about this update, see Deployments - Security Update Guide.
File hash information
| File name | SHA256 hash |
|---|---|
| vs14-KB5049688.exe | FCD072AB282A84F21E474BDA487FD0344DBC98A14E88C7B730E7B5040A558670 |
File information
| File name | File version | File size | Date | Time |
|---|---|---|---|---|
| vs14-KB5049688.exe | 14.0.27563.0 | 71,619,504 | 8-Jan-25 | 2:39 PM |
Installation verification
To verify that this security update is applied correctly, follow these steps:
- Open the Visual Studio 2015 program folder.
- Locate one or more of the files in the following table.
- Verify that the file version is equal to or greater than 14.0.24252.0.
| File name | File version |
|---|---|
| common7\ide\msdia140.dll | 14.0.24252.0 |
| common7\packages\debugger\msdia140.dll | 14.0.24252.0 |
| dia sdk\bin\amd64\msdia140.dll | 14.0.24252.0 |
| dia sdk\bin\arm\msdia140.dll | 14.0.24252.0 |
| dia sdk\bin\msdia140.dll | 14.0.24252.0 |
| team tools\dynamic code coverage tools\amd64\msdia140.dll | 14.0.24252.0 |
| team tools\dynamic code coverage tools\msdia140.dll | 14.0.24252.0 |
| vc\bin\amd64\bscmake.exe | 14.0.24252.0 |
| vc\bin\bscmake.exe | 14.0.24252.0 |
| vc\bin\msobj140.dll | 14.0.24252.0 |
| vc\bin\amd64\msobj140.dll | 14.0.24252.0 |
| vc\bin\mspdb140.dll | 14.0.24252.0 |
| vc\bin\amd64\mspdb140.dll | 14.0.24252.0 |
| vc\bin\mspdbcmf.exe | 14.0.24252.0 |
| vc\bin\amd64\mspdbcmf.exe | 14.0.24252.0 |
| vc\bin\1033\mspdbcmfui.dll | 14.0.24252.0 |
| vc\bin\amd64\1033\mspdbcmfui.dll | 14.0.24252.0 |
| vc\bin\mspdbcore.dll | 14.0.24252.0 |
| vc\bin\amd64\mspdbcore.dll | 14.0.24252.0 |
| vc\bin\mspdbsrv.exe | 14.0.24252.0 |
| vc\bin\amd64\mspdbsrv.exe | 14.0.24252.0 |
| vc\bin\mspdbst.dll | 14.0.24252.0 |
| vc\bin\amd64\mspdbst.dll | 14.0.24252.0 |
| pdbcopy.exe | 14.0.24252.0 |
| Common7\IDE\Remote Debugger\amd64\msvsmon.exe | 14.0.27563.2 |
| Common7\IDE\Remote Debugger\msvsmon.exe | 14.0.27563.2 |
| shmetapdb.dll | 14.0.27563.2 |
Information about protection, security, and support
- Protect yourself online: Windows Security support
- Learn how we guard against cyber threats: Microsoft Security
- Obtain localized support per your country: International Support
- Get more information about the Visual Studio support policy: Visual Studio Product Lifecycle and Servicing