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Microsoft Security Advisory CVE-2026-56170 – .NET Denial of Service Vulnerability

🗓️ 21 Jul 2026 16:15:00Reported by GitHub Advisory DatabaseType 
github
 github🔗 github.com👁 4 Views

Microsoft advisory for .NET SignalR stateful reconnect DoS; update to patched versions.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB		CVE-2026-56170
14 Jul 202617:05
–attackerkb
Circl		CVE-2026-56170
14 Jul 202619:01
–circl
CVE		CVE-2026-56170
14 Jul 202617:05
–cve
Cvelist		CVE-2026-56170 ASP.NET Core Denial of Service Vulnerability
14 Jul 202617:05
–cvelist
Oracle linux		.NET 8.0 security, bug fix, and enhancement update
20 Jul 202600:00
–oraclelinux
Oracle linux		.NET 8.0 security, bug fix, and enhancement update
20 Jul 202600:00
–oraclelinux
Oracle linux		.NET 9.0 security, bug fix, and enhancement update
20 Jul 202600:00
–oraclelinux
Oracle linux		.NET 9.0 security, bug fix, and enhancement update
20 Jul 202600:00
–oraclelinux
Oracle linux		.NET 10.0 security, bug fix, and enhancement update
20 Jul 202600:00
–oraclelinux
Oracle linux		.NET 10.0 security, bug fix, and enhancement update
20 Jul 202600:00
–oraclelinux
Rows per page
Vulners
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microsoftaspnetcore.app.runtime.linux-armRange10.0.0–10.0.5nuget

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21 Jul 2026 16:15Current
5.6Medium risk
Vulners AI Score5.6
CVSS 3.17.5
EPSS0.0078
SSVC
CWE-770
net coresignalrstateful reconnectdenial of servicesecurity advisorypatched versionlinux arm
4