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KB5101347: what it fixes and who gets it

KB5101347 is a security update from Microsoft's July 2026 release for Microsoft SQL Server 2022 (CU 25).

Microsoft data read
4CVEs fixed
1rated Critical
0already exploited
Norestart required

Should you install it?

Yes. It closes holes Microsoft rates Critical, the most serious rating it uses. Windows Update installs it automatically on supported home PCs.

If the installation fails or the PC misbehaves afterwards, note the exact error code first: the fix depends on it. Our update troubleshooting guides are linked on this page.

Security fixes in KB5101347

CVETypeCVSSSeverity
CVE-2026-54118Microsoft SQL Server Remote Code Execution VulnerabilityRemote Code Execution9.8Critical
CVE-2026-47295Microsoft SQL Server Elevation of Privilege VulnerabilityElevation of Privilege8.8Important
CVE-2026-55002Microsoft SQL Server Elevation of Privilege VulnerabilityElevation of Privilege8.8Important
CVE-2026-47296Microsoft SQL Server Elevation of Privilege VulnerabilityElevation of Privilege7.5Important

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