๐Ÿ” CVE Alert

CVE-2026-45591

HIGH 7.5

ASP.NET Core Denial of Service Vulnerability

CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th

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

Vendor microsoft
Product .net 10.0
Ecosystems
Industries
TechnologyEnterprise
Published Jun 9, 2026
Last Updated Jun 9, 2026
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CVSS v3 Breakdown

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
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability

Affected Versions

Microsoft / .NET 10.0
10.0.0 < 10.0.9
Microsoft / .NET 8.0
8.0.0 < 8.0.28
Microsoft / .NET 9.0
9.0.0 < 9.0.17
Microsoft / ASP.NET Core 10.0
10.0 < 10.0.9
Microsoft / ASP.NET Core 8.0
8.0 < 8.0.28
Microsoft / ASP.NET Core 9.0
9.0 < 9.0.17
Microsoft / Microsoft Visual Studio 2026 version 18.6
18.6.0 < 18.6.3

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
msrc.microsoft.com: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45591