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SQL Server 2017 GDR SQL Server 2017 GDR Security update
Patch Tuesday

KB5068403

KB5068403: Security update for SQL Server 2017, GDR branch, November 2025. Database privilege flaw patched; row filters no longer skipped

In short

Addresses one Important SQL Server flaw and fixes a rare setup where database row filters could be skipped.

Does it affect you? Applies to: SQL Server 2017 systems on the GDR servicing branch. The update package is for x64 systems; the listed backup-procedure fix applies to Windows and Linux.

Build
14.0.2095.1
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

  • In rare setups with several roles, row filters no longer get skipped.1
    The issue involved Row-Level Security (RLS) combined with Object-Level Security (OLS) and Column-Level Security (CLS). Examples include roles that grant table-level read access but restrict all columns.

Management Services

  • An internal backup procedure is safer from harmful input and limits access by unauthorized users.2
    The hotfix addresses SQL injection in an internal backup stored procedure that was exposed to all users. It restricts access and sanitizes input parameters.

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
KB5065224, KB5063760, KB5058716, KB5046857
+3 earlier KB5046058, KB5042217, KB5040942
Replaced by
KB5077472
VersionBuildChannel
2017 14.0.2095.1 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 2017
451.7 MB
sqlserver2017-kb5068403-x64.exe Main update · KB5068403 SHA-1: bb4c0263…ae6fa2

Updated components

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

Top changed componentsFiles
SQL Server Engine91
SQL Server Analysis Services6
SQL Server PolyBase1

Sources

Updated
Cited passages from Microsoft's official notes (2)
  1. 1. Row-Level Security (RLS) filters could be skipped when combined with Object-Level Security (OLS) and Column-Level Security (CLS) in certain multi-role configurations. support.microsoft.com
  2. 2. The hotfix restricts unauthorized access and mitigates the risk by properly 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 4/5, 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