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SQL Server 2016 SP3 + GDR SQL Server 2016 SP3 + GDR Security update
Patch Tuesday

KB5068401

KB5068401: Security update for SQL Server 2016, GDR branch, November 2025. SQL injection risk in an internal backup procedure reduced

In short

The update reduces SQL injection risk in an internal backup procedure and addresses one Important SQL Server elevation-of-privilege vulnerability.

Does it affect you? Applies to: Supported x64 installations of SQL Server 2016 SP3, including SP3 GDR releases.

Build
13.0.6475.1
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

Fix 1 change

Management Services

  • An internal backup procedure that was exposed to all users has restricted access, reducing SQL injection risk.1
    The hotfix 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
KB5065226, KB5063762, KB5058718, KB5046855
+3 earlier KB5046063, KB5042207, KB5040946
Replaced by
KB5077474
VersionBuildChannel
2016 13.0.6475.1 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 2016
510.8 MB
sqlserver2016-kb5068401-x64.exe Main update · KB5068401 SHA-1: 17127e89…4e81d3

Updated components

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

Top changed componentsFiles
SQL Server Engine77
SQL Server Analysis Services3
SQL Server PolyBase1

Sources

Updated
Cited passages from Microsoft's official notes (1)
  1. 1. The hotfix restricts unauthorized access and mitigates the risk by correctly sanitizing input parameters. support.microsoft.com
Checked automatically: 8 of 8 checks passed, 1 quoted passage · 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 4/5. 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