CVE-2026-32178

HIGH

.NET Spoofing Vulnerability

Title source: cna
STIX 2.1

Description

Improper neutralization of special elements in .NET allows an unauthorized attacker to perform spoofing over a network.

References (21)

Core 21
Core References
Vendor Advisory vendor-advisory patch
.NET Spoofing Vulnerability
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32178

Scores

CVSS v3 7.5
EPSS 0.0228
EPSS Percentile 81.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-138
Status published
Products (20)
microsoft/.net 10.0.0 - 10.0.6
Microsoft/.NET 10.0 10.0.0 - 10.0.6
Microsoft/.NET 8.0 8.0 - 8.0.26
Microsoft/.NET 8.0 8.0.0 - 8.0.26
Microsoft/.NET 9.0 9.0.0 - 9.0.15
Microsoft/Microsoft Visual Studio 2022 version 17.12 17.12.0 - 17.12.19
Microsoft/Microsoft Visual Studio 2022 version 17.14 17.14.0 - 17.14.30
microsoft/visual_studio_2022 17.12.0 - 17.12.19
nuget/Microsoft.NetCore.App.Runtime.linux-arm 10.0.0 - 10.0.6NuGet
nuget/Microsoft.NetCore.App.Runtime.linux-arm64 10.0.0 - 10.0.6NuGet
... and 10 more
Published Apr 14, 2026
Tracked Since Apr 14, 2026