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

KB5073031

KB5073031: Security update for SQL Server 2022, GDR branch, January 2026. SSIS vulnerability fixed; DBCC stack dumps restricted

In short

The update addresses two vulnerabilities, including a SQL Server elevation-of-privilege flaw, and limits who can invoke DBCC stack dumps.

Does it affect you? Applies to: Supported x64 systems running SQL Server 2022 on the GDR servicing branch. The update is optional on computers that do not host Microsoft SQL Server Reporting Services.

Build
16.0.1165.1
Servicing branch
GDR
Security
2 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

Integration Services

For: Systems using Integration Services on Windows

  • The SSIS client runtime is updated to address a vulnerability.1
    Upgrades Microsoft.Rest.ClientRuntime to version 2.3.24 on SSIS to fix CVE-2022-26907.

Security Infrastructure

  • Only sysadmins can invoke a DBCC stackdump to create a dump file.2
    The restriction applies to Linux and Windows.

Technical details

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

Data sheet

Released
2026-01-13
Classification
Security Updates
Type
Cumulative update
Servicing branch
GDR
Restart
Required
Replaces
KB5068407, KB5065221, KB5063756, KB5058712
+6 earlier KB5046861, KB5046057, KB5042211, KB5040936, KB5035432, KB5032968
Replaced by
KB5077465
VersionBuildChannel
2022 16.0.1165.1 General availability

Security

2 vulnerabilities fixed
1 important 1 not rated
VulnerabilitySeverityCVSS
CVE-2026-20803
Microsoft SQL Server Elevation of Privilege Vulnerability
 Important 7.2
CVE-2022-26907
Not rated —

Downloads (Microsoft Update Catalog)

Package 2022
340.8 MB
sqlserver2022-kb5073031-x64.exe Main update · KB5073031 SHA-1: bf347261…a03070

Updated components

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

Top changed componentsFiles
SQL Server Engine113
SQL Server PolyBase2

Sources

Updated
Cited passages from Microsoft's official notes (2)
  1. 1. Upgrade the Microsoft.Rest.ClientRuntime version to 2.3.24 on SSIS to fix a vulnerability (CVE-2022-26907). support.microsoft.com
  2. 2. Restricts privileges for the DBCC stackdump so that only the sysadmin can invoke the dump file. support.microsoft.com
Checked automatically: 7 of 8 checks passed, 2 quoted passages · compared with Microsoft's page on Sep 26, 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: not 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