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Important: .NET 9.0 security, bug fix, and enhancement update

Important: .NET 9.0 security, bug fix, and enhancement update

Published 1 week agoUpdated 1 week agoSource: OSV

Affected packages

  • aspnetcore-runtime-9.0— before 9.0.19-1.el9_8
  • aspnetcore-runtime-dbg-9.0— before 9.0.19-1.el9_8
  • aspnetcore-targeting-pack-9.0— before 9.0.19-1.el9_8
  • dotnet-apphost-pack-9.0— before 9.0.19-1.el9_8
  • dotnet-hostfxr-9.0— before 9.0.19-1.el9_8
  • dotnet-runtime-9.0— before 9.0.19-1.el9_8
  • dotnet-runtime-dbg-9.0— before 9.0.19-1.el9_8
  • dotnet-sdk-9.0— before 9.0.120-1.el9_8
  • dotnet-sdk-9.0-source-built-artifacts— before 9.0.120-1.el9_8
  • dotnet-sdk-aot-9.0— before 9.0.120-1.el9_8
  • dotnet-sdk-dbg-9.0— before 9.0.120-1.el9_8
  • dotnet-targeting-pack-9.0— before 9.0.19-1.el9_8
  • dotnet-templates-9.0— before 9.0.120-1.el9_8
  • netstandard-targeting-pack-2.1— before 9.0.120-1.el9_8

Exploit signal

Known exploited (CISA KEV)
No
EPSS score
—
EPSS percentile
—

EPSS is the probability a CVE is exploited in the wild; percentile is its rank among all CVEs.

Sources

Structured record: https://osv.dev/vulnerability/ALSA-2026:55856

Recommended response stack

Snyk — Scan your dependencies in CI and fix this vulnerability.→Socket — Detect malicious and compromised packages before they ship.→

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Important: .NET 9.0 security, bug fix, and enhancement update | HackTribune