CVE-2026-56170: high-severity vulnerability in Microsoft .NET 10.0 runtime
ASP.NET Core Denial of Service Vulnerability
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 1.2%
Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
Affected products
Microsoft · .NET 10.0 runtimeMicrosoft · .NET 8.0 runtimeMicrosoft · .NET 9.0 runtimeRelated CVEs — Microsoft .NET 10.0 runtime
In the same product, most dangerous first.
CVE-2026-50649HIGH.NET Remote Code Execution VulnerabilityEPSS 4.0%CVE-2026-50646HIGH.NET Framework Remote Code Execution VulnerabilityEPSS 4.0%CVE-2026-105016CRITICALMicrosoft QUIC Remote Code Execution VulnerabilityEPSS 1.7%CVE-2026-83520HIGH.NET Remote Code Execution VulnerabilityEPSS 1.4%CVE-2026-70035HIGH.NET Framework Remote Code Execution VulnerabilityEPSS 1.4%CVE-2026-58280HIGH.NET Denial of Service VulnerabilityEPSS 1.3%