CVE-2026-26171

HIGH

Microsoft .NET and PowerShell - Resource Consumption Denial of Service

Title source: manual
STIX 2.1

Description

Uncontrolled resource consumption in .NET allows an unauthorized attacker to deny service over a network.

References (1)

Core 1
Core References
Vendor Advisory vendor-advisory patch
.NET Denial of Service Vulnerability
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26171

Scores

CVSS v3 7.5
EPSS 0.0090
EPSS Percentile 54.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-400 CWE-611
Status published
Products (8)
microsoft/.net 10.0.0 - 10.0.6
Microsoft/.NET 10.0 10.0.0 - 10.0.6
Microsoft/.NET 8.0 8.0.0 - 8.0.26
Microsoft/.NET 9.0 9.0.0 - 9.0.15
microsoft/powershell 7.5 - 7.5.6
Microsoft/PowerShell 7.5 7.5.0 - 7.5.6
Microsoft/PowerShell 7.6 7.6.0 - 7.6.1
nuget/System.Security.Cryptography.Xml 10.0.0 - 10.0.6NuGet
Published Apr 14, 2026
Tracked Since Apr 14, 2026