KB5126148
.NET Framework 3.5, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows Server 2012 R2 (KB5126148)
.NET Framework servicing update
Microsoft SupportFramework servicing is separate from the Windows OS update. Microsoft's article provides applicability and security fixes; test the framework versions installed on your servers.
Applies to
Related packages
Security improvements · 2 CVEs named by Microsoft
Source: Microsoft Support · Date not supplied
2CVEs fixed · 0 critical
0Exploited or in CISA KEV
Security fixes
2 Microsoft CVEs · most urgent first| CVE | Vulnerability | Severity | CVSS | EPSS | Impact | Status |
|---|---|---|---|---|---|---|
| CVE-2026-69522 | .NET and Visual Studio Remote Code Execution VulnerabilityVisual Studio | Important | 8.8 | 0.9% | RCENetwork | Revised 29 Sep |
| CVE-2026-62886 | .NET Elevation of Privilege Vulnerability.NET | Important | 7.8 | 0.5% | EoPLocal | Revised 17 Aug |
What changed
First observed 20 Oct 2026No field changes in the recorded history.
Cite this recorded revision to keep the same title, summary, facts and links when the page changes.
A day selects the latest observation by the end of that UTC day; today's selection can change until midnight. History starts when this installation records it.