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

KB5068405

KB5068405: Security update for SQL Server 2019, GDR branch, November 2025. Elevation-of-privilege flaw fixed; Analysis Services filters corrected

In short

Fixes one Important SQL Server elevation-of-privilege vulnerability, corrects rare Analysis Services security-filter behavior, and reduces SQL injection risk in an exposed backup procedure.

Does it affect you? Applies to: SQL Server 2019 installations, including installations with a SQL Server 2019 GDR release. The update package is for x64 systems.

Build
15.0.2155.2
Servicing branch
GDR
Security
1 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

Analysis Services

  • Row-level filters are applied consistently in rare, conflicting multi-role security setups.1
    Fixes cases where Row-Level Security (RLS) filters could be skipped when combined with Object-Level Security (OLS) and Column-Level Security (CLS), including certain configurations with conflicting role permissions.

Management Services

  • The risk of SQL injection through an exposed internal backup procedure is reduced.2
    The hotfix restricts unauthorized access and sanitizes input parameters. The issue affects Linux and Windows.

Technical details

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

Data sheet

Released
2025-11-11
Classification
Security Updates
Type
Cumulative update
Servicing branch
GDR
Restart
Required
Replaces
KB5065223, KB5063758, KB5058713, KB5046859
+4 earlier KB5046056, KB5042214, KB5040986, KB5035434
Replaced by
KB5077470
VersionBuildChannel
2019 15.0.2155.2 General availability

Security

1 vulnerability fixed
1 important
VulnerabilitySeverityCVSS
CVE-2025-59499
Microsoft SQL Server Elevation of Privilege Vulnerability
 Important 8.8

Downloads (Microsoft Update Catalog)

Package 2019
507.4 MB
sqlserver2019-kb5068405-x64.exe Main update · KB5068405 SHA-1: 671d9099…8706e5

Updated components

162 files changed since the previous update for the same versions.

Top changed componentsFiles
SQL Server Engine121
SQL Server Analysis Services6
SQL Server PolyBase5

Sources

Updated
Cited passages from Microsoft's official notes (2)
  1. 1. The fix ensures that RLS is consistently applied in all scenarios. support.microsoft.com
  2. 2. The hotfix restricts unauthorized access and mitigates the risk by correctly sanitizing input parameters. 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