KB5033592: Security update for SQL Server 2022, CU branch, January 2024. SQL data provider security bypass vulnerability resolved
Resolves a security feature-bypass vulnerability in the SQL data providers. It also updates SQL Server 2022 to build 16.0.4100.1.
Does it affect you? Applies to: SQL Server 2022 installations that have SQL Server 2022 or a CU release through CU10 GDR installed. The listed package is for x64.
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
Fix 1 change
SQL data providers
For: SQL Server deployments
-
A security feature-bypass vulnerability in the SQL data providers is resolved.1
The update addresses CVE-2024-0056 in Microsoft.Data.SqlClient and System.Data.SqlClient. SQL Server is updated to build 16.0.4100.1.
Technical details
Data sheet · Security · Downloads · Components Click to collapse or expand
Data sheet
- Released
- 2024-01-09
- Classification
- Security Updates
- Type
- Cumulative update
- Servicing branch
- CU
- Restart
- Required
- Replaced by
- KB5036343
| Version | Build | Channel |
|---|---|---|
| 2022 | 16.0.4100.1 | General availability |
Security
| Vulnerability | Severity | CVSS |
|---|---|---|
|
Microsoft.Data.SqlClient and System.Data.SqlClient SQL Data Provider Security Feature Bypass Vulnerability
|
Important | 8.7 |
Downloads (Microsoft Update Catalog)
Sources
Cited passages from Microsoft's official notes (1)
-
1.
This security update resolves a vulnerability.
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 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