KB5068791: Cumulative update for Windows Server, version 2019, November 2025. Exploited Windows kernel flaw addressed; unexpected UAC prompts fixed
The update addresses an actively exploited Windows kernel flaw and unexpected UAC prompts during some app repairs. It also includes security improvements and a servicing stack update.
Does it affect you? Applies to: All editions of Windows Server 2019.
Microsoft publishes separate notes for this KB for Windows 10.
What changes
Improvements 2 changes
Internal Windows OS
- Windows includes miscellaneous security improvements to internal functionality; no specific issues are documented.1
Servicing stack
-
The component that installs Windows updates receives quality improvements.2
The cumulative update includes servicing stack update KB5070248, build 17763.8020.
Fix 1 change
App compatibility (known issue)
-
Unexpected UAC prompts during MSI repair operations for some apps, including Autodesk AutoCAD, are addressed.3
Addresses unexpected User Account Control (UAC) prompts when running MSI repair operations.
Technical details
Data sheet · Security · Downloads · Components Click to collapse or expand
Data sheet
- Released
- 2025-11-11
- Classification
- Security Updates
- Type
- Cumulative update
- Restart
- Required
- Replaces
- KB5070883, KB5066586, KB5065428, KB5066187
- Replaced by
- KB5071544
| Version | Build | Channel |
|---|---|---|
| 2019 | 17763.8027 | General availability |
Security
| Vulnerability | Severity | CVSS |
|---|---|---|
|
CVE-2025-62215
Exploited
Windows Kernel Elevation of Privilege Vulnerability
|
Important | 7.0 |
|
Windows GDI+ Remote Code Execution Vulnerability
|
Critical | 9.8 |
|
DirectX Graphics Kernel Elevation of Privilege Vulnerability
|
Critical | 7.0 |
The table lists the 3 exploited, publicly disclosed or critical vulnerabilities. See all 32 vulnerabilities →
Downloads (Microsoft Update Catalog)
Updated components
339 files changed since the previous update for the same versions.
| Top changed components | Files |
|---|---|
| Graphics and display | 10 |
| Security and sign-in | 5 |
| Networking | 4 |
| Secure Boot | 4 |
| File Explorer and shell | 3 |
| Kernel | 3 |
| Hyper-V and virtualization | 2 |
| Remote Desktop | 2 |
| Audio | 1 |
| Bluetooth | 1 |
| Settings | 1 |
| Storage and file systems | 1 |
Sources
Cited passages from Microsoft's official notes (3)
-
1.
This update contains miscellaneous security improvements to internal Windows OS functionality. No specific issues are documented for this release.
support.microsoft.com -
2.
This update makes quality improvements to the servicing stack, which is the component that installs Windows updates.
support.microsoft.com -
3.
Fixed: This update addresses an issue that created unexpected User Account Control (UAC) prompts for some apps, including Autodesk AutoCAD.
support.microsoft.com
Checked automatically: 8 of 8 checks passed, 3 quoted passages · 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 5/5, 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