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The Update Bureau

SQL Server 2019

SQL Server 2019

Every published release for SQL Server 2019, newest first: what each update changes, whether to install it and any confirmed known issues.

Latest
KB5132745 Nov 10, 2026
Build
15.0.4510.2
Released
Nov 4, 2019
Cumulative updates
no longer updated since Feb 28, 2025
Security updates
updates until Jan 8, 2030
Known issues
4 open

Build history

  • SQL Server 2019 CU29 + GDR SQL Server 2019 CU29 + GDR Security update

    KB5046860

    SQL OS closes two remote-code-execution paths

    The update fixes two SQL OS issues that might allow remote code execution on Windows SQL Server instances and addresses 31 Important-severity vulnerabilities.

    Check the newer update, KB5058722
    Cumulative updates for SQL Server 2019 end on February 28, 2025. Security updates continue until January 8, 2030.

    Key changes 31 CVEs · 2 changes

    • Fix SQL OS: Remote code execution might be possible on a SQL Server instance through a DLL planting technique; this update fixes the issue.
    • Fix SQL OS: A vulnerability in a SQL Server assembly might allow remote code execution; this update fixes the issue.
    • CVSS 8.8 CVE-2024-38255: SQL Server Native Client Remote Code Execution Vulnerability
    Build
    15.0.4410.1
    Security
    31 vulnerabilities fixed
    Restart
    Required
  • SQL Server 2019 GDR SQL Server 2019 GDR Security update

    KB5046859

    SQL OS flaws that could let attackers run code are fixed

    The update fixes two SQL Server Engine problems that could let attackers run their own instructions on a server from another computer. It also addresses 31 vulnerabilities overall.

    Check the newer update, KB5058713
    SQL Server 2019 cumulative updates end February 28, 2025. Security updates are scheduled to continue through January 8, 2030.

    Key changes 31 CVEs · 2 changes

    • Fix SQL OS: A specially placed library file might let an attacker run their own instructions on a SQL Server instance from another computer; this p...
    • Fix SQL OS: A security weakness in a SQL Server software component might let an attacker run their own instructions on a server from another comput...
    • CVSS 8.8 CVE-2024-38255: SQL Server Native Client Remote Code Execution Vulnerability
    Build
    15.0.2130.3
    Security
    31 vulnerabilities fixed
    Restart
    Required
  • SQL Server 2019 CU29 SQL Server 2019 CU29 Cumulative update

    KB5046365

    18 fixes included; SESSION_CONTEXT can misbehave in parallel plans

    Includes 18 fixes for SQL Server 2019. Queries using SESSION_CONTEXT might return incorrect results or generate access violation dumps in parallel plans.

    Check the newer update, KB5046860
    SQL Server 2019 cumulative updates are scheduled to end on February 28, 2025; security updates are scheduled to continue through January 8, 2030.
    Known issues: 1 open
    • Incorrect behavior of SESSION_CONTEXT in parallel plans

    Key changes 18 changes

    • New Integration Services: A digitally signed catalog file is added to support catalog signing for specified Attunity CDC assemblies.
    • New Replication: You can disable OLE DB streaming for the Replication Distribution Agent to avoid the described error.
    • New Search: Trace flag 7617 is available to skip dropping full-text index fragments marked for deletion during database recovery.
    Build
    15.0.4405.4
    Restart
    Required
  • SQL Server 2019 CU28 + GDR SQL Server 2019 CU28 + GDR Security update

    KB5046060

    VSS Writer backup failures remain; privilege flaw fixed

    Fixes an important SQL Server elevation-of-privilege vulnerability and a CDC issue. Backups of some virtual machines might still fail because of a SQL Server VSS Writer issue.

    Check the newer update, KB5046860
    SQL Server 2019 cumulative updates are scheduled to end February 28, 2025; security updates are scheduled to continue through January 8, 2030.
    Known issues: 1 open Organizations and IT administrators
    • Issue two: SQL Server VSS Writer might fail to perform a backup because no database is available to freeze

    Key changes 1 CVE · 1 change

    • Fix Replication: Change Data Capture (CDC) no longer has the functional issues introduced in the September GDR.
    • CVSS 8.8 CVE-2024-37341: Microsoft SQL Server Elevation of Privilege Vulnerability
    Build
    15.0.4395.2
    Security
    1 vulnerability fixed
    Restart
    Required
  • SQL Server 2019 GDR SQL Server 2019 GDR Security update

    KB5046056

    Elevation-of-privilege flaw fixed; CDC problems corrected

    Fixes one Important SQL Server elevation-of-privilege vulnerability and corrects Change Data Capture functional issues introduced in the September GDR.

    Check the newer update, KB5046859
    SQL Server 2019 cumulative updates end February 28, 2025; security updates continue through January 8, 2030.

    Key changes 1 CVE · 1 change

    • Fix Replication: Change Data Capture (CDC) no longer has the functional issues introduced in the September GDR.
    • CVSS 8.8 CVE-2024-37341: Microsoft SQL Server Elevation of Privilege Vulnerability
    Build
    15.0.2125.1
    Security
    1 vulnerability fixed
    Restart
    Required
  • SQL Server 2019 CU28 + GDR SQL Server 2019 CU28 + GDR Security update

    KB5042749

    Twelve vulnerabilities patched; CDC and VSS backup issues remain

    Fixes 12 vulnerabilities, including 11 rated Important. After installing it, CDC capture jobs might fail and SQL Server VSS Writer might fail to create application-consistent backups.

    Check the newer update, KB5046060
    SQL Server 2019 cumulative updates end February 28, 2025; security updates continue through January 8, 2030.
    Known issues: 2 open Organizations and IT administrators
    • Issue two: SQL Server VSS Writer might fail to perform a backup because no database is available to freeze
    • CDC capture job might fail if columns are missing in CDC change tables

    Key changes 12 CVEs · 3 changes

    • Improved Query Execution: PREDICT checks the MODEL parameter to help avoid errors caused by an incorrect model.
    • Improved Replication: CDC can lock down metadata definitions to block changes to data definitions.
    • Fix Temporal: Stored procedures that manage temporal tables correctly quote table and column names read from database metadata.
    Build
    15.0.4390.2
    Security
    12 vulnerabilities fixed
    Restart
    Required
  • SQL Server 2019 GDR SQL Server 2019 GDR Security update

    KB5042214

    Machine Learning Services flaws addressed; CDC upgrades can fail

    Addresses 12 Important vulnerabilities, including flaws in Machine Learning Services. It also adds a CDC upgrade safeguard, but CDC databases with certain column names might encounter missing columns or restore and upgrade errors.

    Check the newer update, KB5046056
    Cumulative updates for SQL Server 2019 are scheduled to end on February 28, 2025.
    Known issues: 1 open
    • CDC capture job might fail if columns are missing in CDC change tables

    Key changes 12 CVEs · 3 changes

    • Improved Query Execution: PREDICT checks the MODEL parameter before running, helping avoid errors caused by an incorrect model.
    • Improved Replication: CDC gains a capability to block data-definition changes that could affect its metadata.
    • Fix Temporal: Stored procedures that manage temporal tables quote table and column names correctly when building internal SQL batches.
    Build
    15.0.2120.1
    Security
    12 vulnerabilities fixed
    Restart
    Required
  • SQL Server 2019 CU28 SQL Server 2019 CU28 Cumulative update

    KB5039747

    SESSION_CONTEXT errors in parallel plans; backup and patching issues

    CU28 adds 13 fixes, but queries using SESSION_CONTEXT in parallel plans might return incorrect results or trigger access violations. Two other listed issues are fixed in CU29.

    Check the newer update, KB5042749
    SQL Server 2019 cumulative updates are scheduled to end on February 28, 2025; security updates are scheduled to end on January 8, 2030.
    Known issues: 2 open
    • Incorrect behavior of SESSION_CONTEXT in parallel plans
    • Issue two: SQL Server VSS Writer might fail to perform a backup because no database is available to freeze

    Key changes 13 changes

    • Improved Analysis Services: Intel Threading Building Blocks assemblies are digitally signed with a Microsoft certificate.
    • Improved Command Line Tools: SQL Server 2019 container images use the new mssql-tools18 package and tools directory. The previous tools directory is phased out.
    • Improved SQL OS: A high-I/O-latency warning is logged less often, reducing excessive entries in the SQL Server error log.
    Build
    15.0.4385.2
    Restart
    Required
  • SQL Server 2019 CU27 + GDR SQL Server 2019 CU27 + GDR Security update

    KB5040948

    38 vulnerabilities addressed; unused setup components removed

    Addresses 38 Important-severity vulnerabilities and removes unused components from SQL Server Setup.

    Check the newer update, KB5042749
    SQL Server 2019 cumulative updates end on February 28, 2025.

    Key changes 38 CVEs · 1 change

    • Removed Stretch DB: Unused components are removed from SQL Server Setup.
    • CVSS 8.8 CVE-2024-20701: SQL Server Native Client OLE DB Provider Remote Code Execution Vulnerability
    • CVSS 8.8 CVE-2024-21303: SQL Server Native Client OLE DB Provider Remote Code Execution Vulnerability
    Build
    15.0.4382.1
    Security
    38 vulnerabilities fixed
    Restart
    Required
  • SQL Server 2019 GDR SQL Server 2019 GDR Security update

    KB5040986

    Unused Stretch DB components removed from Setup

    The update addresses 38 Important-severity vulnerabilities and removes unused Stretch DB components from Setup. It may require a restart.

    Check the newer update, KB5042214
    Cumulative updates for version 2019 end February 28, 2025; security updates are scheduled through January 8, 2030.

    Key changes 38 CVEs · 1 change

    • Removed Stretch DB: Unused Stretch DB components are removed from SQL Server Setup.
    • CVSS 8.8 CVE-2024-20701: SQL Server Native Client OLE DB Provider Remote Code Execution Vulnerability
    • CVSS 8.8 CVE-2024-21303: SQL Server Native Client OLE DB Provider Remote Code Execution Vulnerability
    Build
    15.0.2116.2
    Security
    38 vulnerabilities fixed
    Restart
    Required
  • SQL Server 2019 CU27 SQL Server 2019 CU27 Cumulative update

    KB5037331

    Thirteen fixes include availability group and logging changes

    Includes 13 fixes for SQL Server 2019. It also leaves an open issue where `SESSION_CONTEXT` queries in parallel plans might return incorrect results or cause access violations.

    Check the newer update, KB5040948
    SQL Server 2019 cumulative updates are scheduled to end February 28, 2025. Security updates are scheduled to continue through January 8, 2030.
    Known issues: 1 open Organizations and IT administrators
    • Incorrect behavior of SESSION_CONTEXT in parallel plans

    Key changes 13 changes

    • New SQL OS: A warning is added to the error log when high I/O latencies are detected in Bufferpool Lazy Writer.
    • Improved High Availability and Disaster Recovery: The cluster log report includes performance monitor counters when a health check timeout is reported.
    • Fix Master Data Services: Using a domain account on a computer that is not a domain controller no longer causes the “Network path not found” error.
    Build
    15.0.4375.4
    Restart
    Required
  • SQL Server 2019 CU26 SQL Server 2019 CU26 Cumulative update

    KB5035123

    Parallel SESSION_CONTEXT queries can return incorrect results

    CU26 includes 23 fixes, but parallel queries using SESSION_CONTEXT might return incorrect results or cause access violations. It also introduces a lock-escalation regression that can cause error 1204.

    Check the newer update, KB5037331
    SQL Server 2019 cumulative updates end on February 28, 2025.
    Known issues: 1 open
    • Incorrect behavior of SESSION_CONTEXT in parallel plans

    Key changes 19 changes

    • New Query Execution: A new setting lets administrators limit the memory used to handle remote procedure call parameters.
    • New Search: The full-text filter usage event reports four additional input and output size measurements.
    • Improved Security Infrastructure: The number of extra user tokens created by SQL Server process views is limited when trace flag 4673 is used.
    Build
    15.0.4365.2
    Restart
    Required
  • SQL Server 2019 CU25 + GDR SQL Server 2019 CU25 + GDR Security update

    KB5036335

    Remote-code flaws addressed in ODBC and OLE DB drivers

    Addresses 38 Important vulnerabilities, including remote code execution flaws in the ODBC and OLE DB drivers for SQL Server.

    Check the newer update, KB5040948
    SQL Server 2019 cumulative updates end February 28, 2025; security updates continue through January 8, 2030.

    Key changes 38 CVEs · 2 changes

    • Fix Microsoft ODBC Driver for SQL Server: Remote code execution vulnerabilities in the ODBC driver are addressed.
    • Fix Microsoft OLE DB Driver for SQL Server: Remote code execution vulnerabilities in the OLE DB driver are addressed.
    • CVSS 8.8 CVE-2024-28906: Microsoft OLE DB Driver for SQL Server Remote Code Execution Vulnerability
    Build
    15.0.4360.2
    Security
    38 vulnerabilities fixed
    Restart
    Required
  • SQL Server 2019 GDR SQL Server 2019 GDR Security update

    KB5035434

    ODBC and OLE DB driver vulnerabilities addressed

    Addresses 38 vulnerabilities in SQL Server-related drivers and updates SQL Server 2019 to build 15.0.2110.4. A restart might be requested.

    Check the newer update, KB5040986
    Cumulative updates for SQL Server 2019 end on February 28, 2025; security updates continue until January 8, 2030.

    Key changes 38 CVEs · 2 changes

    • Improved SQL Server: SQL Server 2019 is updated to build 15.0.2110.4.
    • Fix ODBC Driver for SQL Server and OLE DB Driver for SQL Server: Remote code execution vulnerabilities in the SQL Server drivers are addressed.
    • CVSS 8.8 CVE-2024-28906: Microsoft OLE DB Driver for SQL Server Remote Code Execution Vulnerability
    Build
    15.0.2110.4
    Security
    38 vulnerabilities fixed
    Restart
    Required
  • SQL Server 2019 CU25 SQL Server 2019 CU25 Cumulative update

    KB5033688

    Availability databases return in SSMS; parallel SESSION_CONTEXT remains risky

    Fixes 14 issues in SQL Server 2019, including missing availability databases in SSMS. Queries using SESSION_CONTEXT can still return incorrect results or trigger access violations in parallel plans.

    Check the newer update, KB5036335
    SQL Server 2019 cumulative updates end February 28, 2025; security updates continue through January 8, 2030.
    Known issues: 1 open
    • Incorrect behavior of SESSION_CONTEXT in parallel plans

    Key changes 14 changes

    • Improved High Availability and Disaster Recovery: Creating a read-scale availability group with a large number of databases is prevented to avoid a subsequent assertion failure.
    • Improved Query Execution: A mitigation reduces the chance of an assertion failure during some complex queries using large-value data types; it does not apply in...
    • Improved SQL OS: Compressed memory dumps use I/O more efficiently, limit excessive file-cache growth, and can make better use of available CPU cores.
    Build
    15.0.4355.3
    Restart
    Required