● Covered by 1 source · 1 reportMedium impact1 neutral
.NET and .NET Framework receive September 2026 servicing releases with security fixes
Key points
- .NET and .NET Framework received September 2026 servicing updates
- Updates include security and non-security fixes
- CVEs were fixed in this release
- Components like ASP.NET Core, Entity Framework Core, and Runtime were updated
September 2026 Servicing Updates Released
Microsoft has rolled out the combined servicing updates for .NET and .NET Framework for September 2026. These releases incorporate both security and non-security fixes to improve the stability and security of the platforms.
Security Improvements and Component Updates
The .NET update, released on September 8, 2026, addresses several Common Vulnerabilities and Exposures (CVEs). Key components such as ASP.NET Core, Entity Framework Core, and Runtime have been refreshed to new versions, including 10.0.12, 9.0.20, and 8.0.31 across different branches. The .NET Framework also received its monthly security and non-security updates.
Importance for Developers
These updates are important for developers and organizations utilizing .NET and .NET Framework. Applying these servicing releases helps maintain the security posture of applications and ensures they benefit from the latest bug fixes and performance improvements. Users are encouraged to update to the latest service release.
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Primary sources
GitHub dotnet/core GitHub dotnet/aspnetcore GitHub dotnet/efcore GitHub dotnet/runtime CVE CVE-2026-698057.5 HIGH CVE CVE-2026-694398.8 HIGHReporting from
Microsoft released the September 2026 servicing updates for .NET and .NET Framework, which include security and non-security fixes. These updates address various CVEs and refresh components like ASP.NET Core, Entity Framework Core, and Runtime to new versions. This matters to developers using these frameworks as it ensures their applications remain secure and stable.