KB5095051: what it fixes and who gets it
KB5095051 is a security update from Microsoft's July 2026 release for Windows 11 Version 26H1.
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 KB5095051
| CVE | Type | CVSS | Severity |
|---|---|---|---|
| CVE-2026-42982Windows Secure Kernel Mode Elevation of Privilege Vulnerability | Elevation of Privilege | 7.8 | Critical |
| CVE-2026-42990SQL Server ODBC driver Elevation of Privilege Vulnerability | Remote Code Execution | 9.8 | Important |
| CVE-2026-44800Windows Push Notifications Elevation of Privilege Vulnerability | Elevation of Privilege | 7.8 | Important |
| CVE-2026-40378Windows Local Security Authority Subsystem Service (LSASS) Denial of Service Vulnerability | Denial of Service | 7.5 | Important |
| CVE-2026-48571Windows App Package Installer Elevation of Privilege Vulnerability | Elevation of Privilege | 7.0 | Important |
| CVE-2026-48572Windows App Package Installer Elevation of Privilege Vulnerability | Elevation of Privilege | 7.0 | Important |
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