VDB

CVE-2026-58649

CVE-2026-58649 PUBLISHED CVSS 6.5 MEDIUM

Reported by microsoft · Published September 8, 2026

Origin validation error in .NET allows an unauthorized attacker to disclose information over a network.

Risk Scores

CVSS 3.1
6.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C

Affected Products

VendorProductVersions
Microsoft.NET 10.010.0.0
Microsoft.NET 11.011.0.0
Microsoft.NET 8.08.0.0
Microsoft.NET 9.09.0.0
MicrosoftMicrosoft Visual Studio 2022 version 17.1417.14.0
MicrosoftMicrosoft Visual Studio 2026 version 18.918.9.0
Microsoft.NET 9.09.0.0
microsoft.net10.0.0, 11.0.0, 8.0.0
microsoftvisual_studio_202618.9.0
MicrosoftMicrosoft Visual Studio 2026 version 18.918.9.0
microsoftvisual_studio_202217.14.0
Microsoft.NET 10.010.0.0
Microsoft.NET 11.011.0.0
MicrosoftMicrosoft Visual Studio 2022 version 17.1417.14.0
Microsoft.NET 8.08.0.0

Timeline

  • Sep 8, 2026 CVE Published
  • Sep 8, 2026 CVE Updated
  • Sep 9, 2026 Coalition ESS Score
  • Sep 9, 2026 Security Advisory

References

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