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CVE-2026-45591 ASP.NET Core Denial of Service Vulnerability

🗓️ 09 Jun 2026 17:05:29Reported by microsoftType 
cvelist
 cvelist
🔗 www.cve.org👁 27 Views

CVE-2026-45591 describes a denial of service vulnerability in ASP.NET Core.

Related
Affected
Refs
[
  {
    "vendor": "Microsoft",
    "product": ".NET 10.0",
    "versions": [
      {
        "version": "10.0.0",
        "lessThan": "10.0.9",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": ".NET 8.0",
    "versions": [
      {
        "version": "8.0.0",
        "lessThan": "8.0.28",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": ".NET 9.0",
    "versions": [
      {
        "version": "9.0.0",
        "lessThan": "9.0.17",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "ASP.NET Core 10.0",
    "versions": [
      {
        "version": "10.0",
        "lessThan": "10.0.9",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "ASP.NET Core 8.0",
    "versions": [
      {
        "version": "8.0",
        "lessThan": "8.0.28",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "ASP.NET Core 9.0",
    "versions": [
      {
        "version": "9.0",
        "lessThan": "9.0.17",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Microsoft Visual Studio 2026 version 18.6",
    "versions": [
      {
        "version": "18.6.0",
        "lessThan": "18.6.3",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  }
]

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16 Jun 2026 18:18Current
CVSS 3.17.5
EPSS0.00766
27