KB5132746 - Description of the security update for SQL Server 2017 CU31: November 10, 2026

Applies To
SQL Server 2017 on Linux SQL Server 2017 on Windows

Release date: November 10, 2026

Version: 14.0.3570.2

Summary

This security update contains fixes and resolves vulnerabilities. To learn more about the vulnerabilities, see the following security advisories:

The Microsoft SQL Server components are updated to the following builds in this security update:

  • SQL Server - product version: 14.0.3570.2, file version: 2017.140.3570.2

Important

To help secure SQL Server on Windows, enable encryption with Extended Protection.

Improvements and fixes included in this update

A downloadable Microsoft Excel workbook that contains a summary list of builds, together with their current support lifecycle, is available. The Excel file also contains detailed fix lists. Download this Excel file now.

Note

Individual entries in the following table can be referenced directly through a bookmark. If you select any bug reference ID in the table, a bookmark tag is added to the URL by using the "#bkmk_NNNNNNN" format. You can then share this URL with others so that they can jump directly to the desired fix in the table.

Bug reference Description Fix area Component Platform
5270206 Fixes an out-of-bounds memory read action that can occur during processing of certain client connection requests. SQL Connectivity SQL Connectivity Linux, Windows
5500253 Resolves several security vulnerabilities that allow information disclosure or a denial of service if the SQL Database Engine reads a specially crafted Extended Events (.xel) file. SQL Server Engine Extended Events Linux, Windows
5572855 Fixes a security vulnerability that allows information disclosure or a denial of service if the SQL Database Engine reads a specially crafted SQL Trace file. SQL Server Engine Programmability Linux, Windows
5622184 Fixes a heap buffer overflow during XML operations. SQL Server Engine Programmability Linux, Windows
5622475 Fixes a memory corruption issue in XA distributed transaction processing. SQL Server Engine Transaction Services Windows
5624086 Fixes an out-of-bounds read action in log block record parsing. SQL Server Engine Security Infrastructure Windows
5624548 Improves security for index operations in SQL Server. SQL Server Engine Methods to access stored data Windows
5624562 Fixes an issue in which querying a database that contains a corrupted row-compressed record can return unintended memory content. SQL Server now returns a database corruption error message instead. SQL Server Engine Access Methods Windows
5624589 Improves security for transaction logging in SQL Server. SQL Server Engine Methods to access stored data Windows
5624896 Improves validation of sparse column data in SQL Server to enhance security and reliability. SQL Server Engine Access Methods Windows
5624933 Strengthens validation of columnstore data in SQL Server. SQL Server Engine Column Stores Windows
5624964 Improves the validation of variable-length column offsets if SQL Server processes database records. SQL Server Engine Methods to access stored data Windows
5625000 Strengthens database metadata validation in SQL Server. SQL Server Engine Methods to access stored data Windows
5639367 Fixes an issue in replication operations that affects data validation. SQL Server Engine Replication Linux, Windows
5639381 Addresses an issue in Merge Replication Web Synchronization operations that affects data validation. SQL Server Engine Replication Linux, Windows
5639400 Strengthens authorization checks for certain replication-related database operations to prevent unintended disclosure of database information. SQL Server Engine Replication Linux, Windows
5642396 Improves the handling of object names in internal stored procedures. SQL Server Engine Management Services Linux, Windows
5644969 Improves the security and reliability of the handling of replication security metadata during subscription database restore and upgrade operations. SQL Server Engine Replication Windows
5645008 Improves the security and reliability of the Log Reader Agent in heterogeneous transactional replication scenarios. SQL Server Engine Replication Windows
5645707 Improves the handling of database names in SQLdiag for long names and names that contain Unicode characters. SQL Server Client Tools SQLDiag Windows
5649555 Fixes an information disclosure issue in queued replication command decoding. SQL Server Engine Replication Windows
5649820 Improves validation of column ordinals in replication rowsets. SQL Server Engine Replication Windows
5653501 Strengthens security validation for replication during database upgrades. SQL Server Engine Replication Windows
5653531 Improves the validation of conflict table names for transactional replication. SQL Server Engine Replication Windows
5653542 Improves the handling of column names in merge replication stored procedures. SQL Server Engine Replication Windows
5653584 Improves identifier validation for transactional replication. SQL Server Engine Replication Windows
5653600 Improves the handling of conflict table names in merge replication. SQL Server Engine Replication Windows
5653633 Strengthens security validation for conflict reporting in merge replication. SQL Server Engine Replication Windows
5653701 Improves the validation of object names for schema changes in merge replication. SQL Server Engine Replication Windows
5653713 Improves the handling of table names in the generated procedures for merge replication. SQL Server Engine Replication Windows
5653729 Strengthens input validation for change processing in merge replication. SQL Server Engine Replication Windows
5653750 Improves security if transactional replication processes schema changes. SQL Server Engine Replication Windows
5653782 Strengthens security checks for lightweight merge replication operations. SQL Server Engine Replication Windows
5653814 Improves security validation for the processing of queued replication data. SQL Server Engine Replication Windows
5654540 Improves the protection of replication data and operations. SQL Server Engine Replication Linux, Windows
5655270 Disables XSLT scripting by default. To restore previous behavior, set EnableXsltScript to 1 under HKLM\SOFTWARE\Microsoft\Microsoft SQL Server\{version}\SSIS\XMLTask. Integration Services Integration Services Windows
5657353 Fixes a heap over-read action that occurs if the SQL task in SQL Server Integration Services processes OLE DB output parameters. Integration Services Integration Services Windows
5658052 Fixes an integer overflow that can cause memory access issues in the HTTP Connection Manager in SQL Server Integration Services. Integration Services Integration Services Windows
5658160 Fixes a memory access violation that might occur when you use the Raw File source component of SQL Server Integration Services. Integration Services Integration Services Windows
5699971 Rolls back the changes that were introduced by the queued replication hotfix. SQL Server Engine Replication Windows
5699974 Rolls back the changes that were introduced by the queued replication hotfix. SQL Server Engine Replication Windows
5723045 Fixes replication queue parameter validation to reject boundary strings that exceed the WCHAR conversion buffer. SQL Server Engine Replication Windows
5723094 Fixes replication queue parameter validation to reject boundary strings that exceed the WCHAR conversion buffer. SQL Server Engine Replication Windows
5723123 Fixes an information disclosure vulnerability in replication queue command decoding. SQL Server Engine Replication Windows
5723134 Improves Merge Replication error-source parsing by adding bounded validation. SQL Server Engine Replication Windows
5723268 Fixes a heap buffer overflow that can occur in the Log Reader Agent. SQL Server Engine Replication Windows
5725149 Strengthens security checks for linked server access in replication. SQL Server Engine Replication Linux, Windows
5731766 Fixes an elevation of privilege vulnerability in SQL Server merge replication. Replication system procedures now reject batch separators in subscriber validation expressions. SQL Server Engine Replication Windows

How to obtain and install the update

Method 1: Windows Update

This update is available through Windows Update. When you turn on automatic updating, this update will be downloaded and installed automatically. For more information about how to turn on automatic updating, see Windows Update: FAQ.

Method 2: Microsoft Update Catalog

To get the standalone package for this update, go to the Microsoft Update Catalog website.

Note

  • The detection logic has been updated for this and future security releases that are posted to the Microsoft Update Catalog website. For more information, see Updates to the Microsoft Update detection logic for SQL Server servicing.
  • This update is made available through the Microsoft Update Catalog for all servers that are running SQL Server, even if Reporting Services is not installed. Installing this security update is optional for computers that do not host Microsoft SQL Server Reporting Services.

Method 3: Microsoft Download Center

The following file is available for download from the Microsoft Download Center:

Download icon Download the package now

More information

Prerequisites

To apply this update, you must have SQL Server 2017 or any SQL Server 2017 CU release through this SQL Server 2017 CU31 GDR installed.

Security update deployment information

For deployment information about this update, see Deployments - Security Update Guide.

File hash information

File name SHA256 hash
SQLServer2017-KB5132746-x64.exe 07DAFEBB513142EDCDA20A7BBE9B2195C1FCCA04CC51DFBB4BA26A3983DC0BB2

File information

The English version of this package has the file attributes (or later file attributes) that are listed in the following worksheet. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it's converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

For all supported x64-based versions - Download the list of files that are included in security update 5132746.

Information about protection and security

Protect yourself online: Windows Security support

Learn how we guard against cyber threats: Microsoft Security