CVE-2026-58649

Summary

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

Affected Software

VendorProductVersion RangeStatus
Microsoft.NET 10.010.0.0 < 10.0.111, 10.0.400affected
Microsoft.NET 11.011.0.0 < 11.0 RC1affected
Microsoft.NET 8.08.0.0 < 8.0.130, 8.0.424affected
Microsoft.NET 9.09.0.0 < 9.0.120, 9.0.317affected
MicrosoftMicrosoft Visual Studio 2022 version 17.1417.14.0 < 17.14.40affected
MicrosoftMicrosoft Visual Studio 2026 version 18.918.9.0 < 18.9.3affected

Weaknesses

  • CWE-346: CWE-346: Origin Validation Error

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References