Microsoft .NET Windows Desktop Runtime 9.0 security updates
The latest version of Microsoft .NET Windows Desktop Runtime 9.0 is 9.0.23, released October 23, 2026. Patch Radar has 2 security fixes for Microsoft .NET Windows Desktop Runtime 9.0, closing 26 CVEs. The newest security fix is Microsoft .NET Windows Desktop Runtime 9.0 9.0.21, released October 5, 2026. Version 9.0.23 adds no new CVE fixes and includes all of them. 2 CVEs have no fix yet.
CVEs with no fix yet
| Priority | CVE | Title | Status |
|---|---|---|---|
| High | CVE-2026-96237 | .NET Remote Code Execution Vulnerability | no-fix |
| High | CVE-2026-96238 | .NET Security Feature Bypass Vulnerability | no-fix |
Security fixes, newest first
| Priority | Fix | Fixed in | CVEs | Exploited | Released |
|---|---|---|---|---|---|
| Latest | Microsoft .NET Windows Desktop Runtime 9.0 9.0.23 | 9.0.23 | Includes every fix below | Oct 23, 2026 | |
| Urgent | Microsoft .NET Windows Desktop Runtime 9.0 9.0.21 | 9.0.21 | 22 | Oct 5, 2026 | |
| High | Microsoft .NET Windows Desktop Runtime 9.0 9.0.20 | 9.0.20 | 4 | Aug 21, 2026 | |
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