CVE-2026-56170

HIGH

Microsoft ASP.NET Core - Resource Allocation Denial of Service

Title source: manual
STIX 2.1

Description

Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.

References (1)

Core 1
Core References
Vendor Advisory vendor-advisory patch
ASP.NET Core Denial of Service Vulnerability
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56170

Scores

CVSS v3 7.5
EPSS 0.0101
EPSS Percentile 59.6%
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-770
Status published
Products (42)
microsoft/.net 8.0.0 - 8.0.29
Microsoft/.NET 10.0 10.0.0 - 10.0.10
Microsoft/.NET 10.0 10.0.0 - 10.0.6
Microsoft/.NET 10.0 10.0.0 - 5104034
Microsoft/.NET 8.0 8.0.0 - 8.0.29
Microsoft/.NET 9.0 9.0.0 - 9.0.18
nuget/Microsoft.AspNetCore.App.Runtime.linux-arm 10.0.0 - 10.0.6NuGet
nuget/Microsoft.AspNetCore.App.Runtime.linux-arm 8.0.0 - 8.0.26NuGet
nuget/Microsoft.AspNetCore.App.Runtime.linux-arm 9.0.0 - 9.0.15NuGet
nuget/Microsoft.AspNetCore.App.Runtime.linux-arm64 10.0.0 - 10.0.6NuGet
... and 32 more
Published Jul 14, 2026
Tracked Since Jul 14, 2026