CVE-2025-55227

Microsoft SQL Server Elevation of Privilege Vulnerability

CVE-2025-55227 is fixed in 8 products on 1 platform, first by KB5065226, released September 9, 2025. It is not reported as exploited. Patch Radar priority: High.

High

CVSS

8.8

Important

Exploitation

None reported

Exploitation Less Likely

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0142

72nd percentile

<p>Improper neutralization of special elements used in a command ('command injection') in SQL Server allows an authorized attacker to elevate privileges over a network.</p>

Where it's fixed

Product	Fix	Released
Microsoft
Microsoft SQL Server 2016 for x64-based Systems Service Pack 3 (GDR)	KB5065226	Sep 9, 2025
Microsoft SQL Server 2016 for x64-based Systems Service Pack 3 Azure Connect Feature Pack	KB5065227	Sep 9, 2025
Microsoft SQL Server 2017 for x64-based Systems (CU 31)	KB5065225	Sep 9, 2025
Microsoft SQL Server 2017 for x64-based Systems (GDR)	KB5065224	Sep 9, 2025
Microsoft SQL Server 2019 for x64-based Systems (CU 32)	KB5065222	Sep 9, 2025
Microsoft SQL Server 2019 for x64-based Systems (GDR)	KB5065223	Sep 9, 2025
Microsoft SQL Server 2022 for x64-based Systems (CU 20)	KB5065220	Sep 9, 2025
Microsoft SQL Server 2022 for x64-based Systems (GDR)	KB5065221	Sep 9, 2025

Details

Published
September 9, 2025
Weakness
Improper Neutralization of Special Elements used in a Command ('Command Injection')
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-55227

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