PT-2026-87202 · Microsoft+1 · .Net 10.0+9

CVE-2026-58649

·

Published

2026-09-08

·

Updated

2026-09-10

CVSS v3.1

6.5

Medium

VectorAV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Origin validation error in .NET allows an unauthorized attacker to disclose information over a network.

Fix

Origin Validation Error

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Weakness Enumeration

CWE-346

Related Identifiers

CVE-2026-58649
USN-8740-1

Affected Products

.Net 10.0
.Net 11.0
.Net 8.0
.Net 9.0
Visual Studio 2022 Version 17.14
Visual Studio 2026 Version 18.9
Dotnet10
Dotnet6
Dotnet7
Dotnet8