CVE-2026-45591

ASP.NET Core Denial of Service Vulnerability

State
Published
Severity
7.5 High
Published
Jun 9, 2026
Updated
Sep 24, 2026
Reserved
May 12, 2026

Read the record on cve.org

Description

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

Scores

CVSSScoreVectorSource
3.17.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:Cmicrosoft
3.17.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hredhat-SADP

Weaknesses

  • CWE-400 Uncontrolled Resource Consumption
  • CWE-770 Allocation of Resources Without Limits or Throttling

Affected Products

ProductVersions
.NET 10.0Microsoft
  • 10.0.0 to before 10.0.9Affected
.NET 8.0Microsoft
  • 8.0.0 to before 8.0.28Affected
.NET 9.0Microsoft
  • 9.0.0 to before 9.0.17Affected
ASP.NET Core 10.0Microsoft
  • 10.0 to before 10.0.9Affected
ASP.NET Core 8.0Microsoft
  • 8.0 to before 8.0.28Affected
ASP.NET Core 9.0Microsoft
  • 9.0 to before 9.0.17Affected
Microsoft Visual Studio 2026 version 18.6Microsoft
  • 18.6.0 to before 18.6.3Affected

References

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