Windows 11 · 25H2 · .NET Framework update
.NET Framework Security Update for Windows 11 - KB5087051 (26200.9335)
- Release
- .NET Framework update
- KB5087051 — Microsoft's article, opens in a new tab
- amd64
- arm64
Windows 11 25H2: Current mainstream release
This is a .NET Framework package for Windows 11 25H2, not an operating-system build. Its history below lists other .NET packages on the 26200 base.
AI summary
This .NET Framework 3.5 and 4.8.1 update delivers runtime reliability and compatibility maintenance alongside patches for two privilege-escalation vulnerabilities on Windows 11 25H2.
Generated from the package's release notes and forum coverage. Verify against Microsoft's release-health page before acting on it.
Known issues — reported on the forum
No problems reported on the forum for this build yet. Threads that name 26200.9335 or KB5087051 and describe a fault appear here automatically.
In the news
- Issue KB5095093 Fixes Windows 11 24H2/25H2 Shell Break After Provisioning
- Fix Windows 11 24H2/25H2 Enterprise Shell Failures: Provisioning Race Fix KB5095093
- Issue Windows 11 25H2 BitLocker Local Account Warning Still Mentions “Search Charm”
- Coverage KB5079473 Broke Microsoft Account Sign-Ins on Windows 11 24H2/25H2
- Issue KB5095093 Fixes Windows 11 24H2/25H2 513GB WAL Storage Bug
- Coverage Windows 11 24H2 Home/Pro: Upgrade to 25H2 by October 13, 2026
- Coverage Rufus 4.15 Creates Windows 11 25H2 USBs With GPT and UEFI
- Fix KB5101650 Adds Point-in-Time Restore to Windows 11 24H2/25H2
Discussed on the forum
No member thread names 26200.9335 yet.