Windows apps · Microsoft

Microsoft ASP.NET Core Hosting Bundle 9.0 security updates

The latest version of Microsoft ASP.NET Core Hosting Bundle 9.0 is 9.0.23, released October 23, 2026. Patch Radar has 2 security fixes for Microsoft ASP.NET Core Hosting Bundle 9.0, closing 26 CVEs. The newest security fix is Microsoft ASP.NET Core Hosting Bundle 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.

2 with no fix yet
Latest version
9.0.23
Released Oct 23, 2026
Security fixes
2
On record in Patch Radar
CVEs
26
Closed by those fixes
Exploited
0
Vendor report or CISA KEV

CVEs with no fix yet

PriorityCVETitleStatus
High CVE-2026-96237 .NET Remote Code Execution Vulnerabilityno-fix
High CVE-2026-96238 .NET Security Feature Bypass Vulnerabilityno-fix

Security fixes, newest first

PriorityFixFixed inCVEsExploitedReleased
Latest Microsoft ASP.NET Core Hosting Bundle 9.0 9.0.239.0.23 Includes every fix below Oct 23, 2026
Urgent Microsoft ASP.NET Core Hosting Bundle 9.0 9.0.219.0.21 22 Oct 5, 2026
High Microsoft ASP.NET Core Hosting Bundle 9.0 9.0.209.0.20 4 Aug 14, 2026

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