KB5101346: what it fixes and who gets it
KB5101346 is a security update from Microsoft's July 2026 release for Microsoft SQL Server 2025 (CU6).
Microsoft data read
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 KB5101346
| CVE | Type | CVSS | Severity |
|---|---|---|---|
| CVE-2026-54117Microsoft SQL Server Remote Code Execution Vulnerability | Remote Code Execution | 9.8 | Critical |
| CVE-2026-54118Microsoft SQL Server Remote Code Execution Vulnerability | Remote Code Execution | 9.8 | Critical |
| CVE-2026-47295Microsoft SQL Server Elevation of Privilege Vulnerability | Elevation of Privilege | 8.8 | Important |
| CVE-2026-55002Microsoft SQL Server Elevation of Privilege Vulnerability | Elevation of Privilege | 8.8 | Important |
| CVE-2026-47296Microsoft SQL Server Elevation of Privilege Vulnerability | Elevation of Privilege | 7.5 | Important |
| CVE-2026-50468Microsoft SQL Server Information Disclosure Vulnerability | Information Disclosure | 6.5 | Important |
| CVE-2026-54116Microsoft SQL Server Information Disclosure Vulnerability | Information Disclosure | 6.5 | Important |
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