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SQL Server 2019 GDR SQL Server 2019 GDR Security update
Patch Tuesday

KB5046859

KB5046859: Security update for SQL Server 2019, GDR branch, November 2024. SQL OS flaws that could let attackers run code are fixed

In short

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.

Does it affect you? Applies to: Devices running SQL Server 2019 on the GDR branch, including systems with a SQL Server 2019 GDR release through this update. The available package is for x64.

Build
15.0.2130.3
Servicing branch
GDR
Security
31 fixed
Restart
Required

For servers on the GDR branch: they get security fixes only. Servers that install cumulative updates (CU branch) get a separate update. Which branch am I on?

What changes

Fixes 2 changes

SQL OS

2 items
  • A specially placed library file might let an attacker run their own instructions on a SQL Server instance from another computer; this problem is fixed.1
    Fixes bug 3542145: remote code execution might be performed by using a dynamic-link library (DLL) planting technique on a SQL Server instance.
  • A security weakness in a SQL Server software component might let an attacker run their own instructions on a server from another computer; this problem is fixed.2
    Fixes bug 3540548: a vulnerability in a SQL Server assembly might allow remote code execution.

Technical details

Data sheet · Security · Downloads · Components Click to collapse or expand

Data sheet

Released
2024-11-12
Classification
Security Updates
Type
Cumulative update
Servicing branch
GDR
Restart
Required
Replaces
KB5046056, KB5042214, KB5040986, KB5035434
Replaced by
KB5058713
VersionBuildChannel
2019 15.0.2130.3 General availability

Security

31 vulnerabilities fixed
31 important
VulnerabilitySeverityCVSS

The table lists the 0 exploited, publicly disclosed or critical vulnerabilities. See all 31 vulnerabilities →

Downloads (Microsoft Update Catalog)

Package 2019
504.3 MB
sqlserver2019-kb5046859-x64.exe Main update · KB5046859 SHA-1: 768286f9…012b27

Sources

Updated
Cited passages from Microsoft's official notes (2)
  1. 1. Fixes an issue in which remote code executions might be performed by using a dynamic-link library (DLL) planting technique on a SQL Server instance. support.microsoft.com
  2. 2. Fixes an issue in which a vulnerability in a SQL Server assembly might allow remote code execution. support.microsoft.com
Checked automatically: 8 of 8 checks passed, 2 quoted passages · compared with Microsoft's page on Oct 20, 2026
  • Quotes found in the official pages: passed
  • Numbers found in the sources: passed
  • Vulnerabilities from the dossier only: passed
  • Links to allowed domains only: passed
  • Every official change covered: passed
  • Readable plain text: passed
  • Changes confirmed by the file list: passed
  • Sources agree: passed

A second AI read the text against the sources: correctness 5/5, clarity 5/5, completeness 5/5. How we work

Published by The Update Bureau. Written with AI from Microsoft's own documents, checked by rules and a second AI. How we work · Report a mistake