CVE-2026-45591

high Microsoft
CVSS v3 Base Score
7.5
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
EPSS Score
2.4%
Exploitation probability in 30 days
Top 18% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Confidentiality
None
Integrity
None
Availability
High
Published: June 9, 2026 (30 days ago)
Last Modified: June 30, 2026
Vendor: Microsoft
Source: MITRE

Description

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

CWE

CWE-400

Affected Products

Microsoft .NET 10.0Microsoft .NET 8.0Microsoft .NET 9.0Microsoft ASP.NET Core 10.0Microsoft ASP.NET Core 8.0Microsoft ASP.NET Core 9.0Microsoft Microsoft Visual Studio 2026 version 18.6

References

🔗 msrc.microsoft.com