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SQL Server 2022 CU21 + GDR SQL Server 2022 CU21 + GDR Security update
Patch Tuesday

KB5068406

KB5068406: Security update for SQL Server 2022, CU branch, November 2025. Multi-role security filters corrected; backup procedure flaw mitigated

In short

The update fixes one Important SQL Server elevation-of-privilege vulnerability, corrects a rare Row-Level Security issue, and mitigates SQL injection risk in an internal backup procedure.

Does it affect you? Applies to: SQL Server 2022 installations are eligible if they have SQL Server 2022 or a CU release through CU21 GDR. The Analysis Services security-filter fix applies on Windows; the backup-procedure fix applies on Linux and Windows.

Build
16.0.4222.2
Servicing branch
CU
Security
1 fixed
Restart
Required

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

What changes

Fixes 2 changes

Analysis Services

For: SQL Server Analysis Services on Windows with the described multi-role configurations

  • In rare, contradictory multi-role setups, row-level security filters are consistently applied.1
    Fixes cases where Row-Level Security filters could be skipped when combined with Object-Level Security and Column-Level Security. The issue occurs only under rare and contradictory configurations.

Management Services

For: SQL Server installations on Linux and Windows

  • Unauthorized access to an internal backup procedure is restricted, mitigating SQL injection risk.2
    The hotfix sanitizes input parameters in an internal backup stored procedure that was inadvertently exposed to all users. Applies on 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
CU
Restart
Required
Replaces
KB5065865, KB5065220, KB5063814, KB5059390
+16 earlier KB5058721, KB5054531, KB5050771, KB5048038, KB5048033, KB5046862, KB5046059, KB5041321, KB5042578, KB5038325, KB5040939, KB5036432, KB5036343, KB5033663, KB5032679, KB5033592
Replaced by
KB5072936
VersionBuildChannel
2022 16.0.4222.2 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 2022
462.3 MB
sqlserver2022-kb5068406-x64.exe Main update · KB5068406 SHA-1: e328bcaf…570ece

Updated components

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

Top changed componentsFiles
SQL Server Engine115
SQL Server Analysis Services6
SQL Server PolyBase3

Sources

Updated
Cited passages from Microsoft's official notes (2)
  1. 1. This update resolves an issue in SQL Server Analysis Services in which Row-Level Security (RLS) filters could be skipped when combined with Object-Level Security (OLS) and Column-Level Security (CLS) support.microsoft.com
  2. 2. This hotfix addresses a SQL injection vulnerability in an internal backup stored procedure that was inadvertently exposed to all users. 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 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