{
  "cveId": "CVE-2020-0603",
  "url": "https://patchblox.com/security/cve/CVE-2020-0603",
  "summary": "CVE-2020-0603 is fixed in 11 products on 1 platform, first by RHSA-2020:0130, released January 16, 2020. It is not reported as exploited. Patch Radar priority: Urgent.",
  "title": "ASP.NET Core Remote Code Execution Vulnerability",
  "description": "\u003Cp\u003EA remote code execution vulnerability exists in ASP.NET Core software when the software fails to handle client deleted connections.\u003C/p\u003E\n\u003Cp\u003EAn attacker who successfully exploited the vulnerability could run arbitrary code in memory on the server. Exploitation of the vulnerability requires that a user perform certain actions during the connection process.\u003C/p\u003E\n\u003Cp\u003EThe security update addresses the vulnerability by correcting how ASP.NET Core handles deleted connections.\u003C/p\u003E",
  "published": "2020-01-14T08:00:00Z",
  "severity": "Critical",
  "cvss": 8.8,
  "epss": 0.22561,
  "epssPercentile": 0.97724,
  "priority": "Urgent",
  "priorityTier": 2,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "exploitabilityAssessment": "Exploitation Less Likely",
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-0603",
  "fixes": [
    {
      "platform": "linux",
      "product": "aspnetcore-runtime-3.0",
      "release": "RHEL 8",
      "fixedVersion": "0:3.0.2-2.el8_1",
      "fix": "RHSA-2020:0130",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2020-0130",
      "released": "2020-01-16T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "aspnetcore-runtime-3.0",
      "release": "ol 8",
      "fixedVersion": "0:3.0.2-2.0.1.el8_1",
      "fix": "ELSA-2020-0130",
      "url": "https://patchblox.com/security/fix/linux/elsa-2020-0130",
      "released": "2020-01-20T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "aspnetcore-targeting-pack-3.0",
      "release": "RHEL 8",
      "fixedVersion": "0:3.0.2-2.el8_1",
      "fix": "RHSA-2020:0130",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2020-0130",
      "released": "2020-01-16T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "aspnetcore-targeting-pack-3.0",
      "release": "ol 8",
      "fixedVersion": "0:3.0.2-2.0.1.el8_1",
      "fix": "ELSA-2020-0130",
      "url": "https://patchblox.com/security/fix/linux/elsa-2020-0130",
      "released": "2020-01-20T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "dotnet",
      "release": "RHEL 8",
      "fixedVersion": "0:3.0.102-2.el8_1",
      "fix": "RHSA-2020:0130",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2020-0130",
      "released": "2020-01-16T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "dotnet",
      "release": "ol 8",
      "fixedVersion": "0:3.0.102-2.0.1.el8_1",
      "fix": "ELSA-2020-0130",
      "url": "https://patchblox.com/security/fix/linux/elsa-2020-0130",
      "released": "2020-01-20T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "dotnet-apphost-pack-3.0",
      "release": "RHEL 8",
      "fixedVersion": "0:3.0.2-2.el8_1",
      "fix": "RHSA-2020:0130",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2020-0130",
      "released": "2020-01-16T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "dotnet-apphost-pack-3.0",
      "release": "ol 8",
      "fixedVersion": "0:3.0.2-2.0.1.el8_1",
      "fix": "ELSA-2020-0130",
      "url": "https://patchblox.com/security/fix/linux/elsa-2020-0130",
      "released": "2020-01-20T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "dotnet-host",
      "release": "RHEL 8",
      "fixedVersion": "0:3.0.2-2.el8_1",
      "fix": "RHSA-2020:0130",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2020-0130",
      "released": "2020-01-16T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "dotnet-host",
      "release": "ol 8",
      "fixedVersion": "0:3.0.2-2.0.1.el8_1",
      "fix": "ELSA-2020-0130",
      "url": "https://patchblox.com/security/fix/linux/elsa-2020-0130",
      "released": "2020-01-20T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "dotnet-hostfxr-3.0",
      "release": "RHEL 8",
      "fixedVersion": "0:3.0.2-2.el8_1",
      "fix": "RHSA-2020:0130",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2020-0130",
      "released": "2020-01-16T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "dotnet-hostfxr-3.0",
      "release": "ol 8",
      "fixedVersion": "0:3.0.2-2.0.1.el8_1",
      "fix": "ELSA-2020-0130",
      "url": "https://patchblox.com/security/fix/linux/elsa-2020-0130",
      "released": "2020-01-20T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "dotnet-runtime-3.0",
      "release": "RHEL 8",
      "fixedVersion": "0:3.0.2-2.el8_1",
      "fix": "RHSA-2020:0130",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2020-0130",
      "released": "2020-01-16T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "dotnet-runtime-3.0",
      "release": "ol 8",
      "fixedVersion": "0:3.0.2-2.0.1.el8_1",
      "fix": "ELSA-2020-0130",
      "url": "https://patchblox.com/security/fix/linux/elsa-2020-0130",
      "released": "2020-01-20T00:00:00Z"
    },
    {
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      "release": "RHEL 8",
      "fixedVersion": "0:3.0.102-2.el8_1",
      "fix": "RHSA-2020:0130",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2020-0130",
      "released": "2020-01-16T00:00:00Z"
    },
    {
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      "product": "dotnet-sdk-3.0",
      "release": "ol 8",
      "fixedVersion": "0:3.0.102-2.0.1.el8_1",
      "fix": "ELSA-2020-0130",
      "url": "https://patchblox.com/security/fix/linux/elsa-2020-0130",
      "released": "2020-01-20T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "dotnet-targeting-pack-3.0",
      "release": "RHEL 8",
      "fixedVersion": "0:3.0.2-2.el8_1",
      "fix": "RHSA-2020:0130",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2020-0130",
      "released": "2020-01-16T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "dotnet-targeting-pack-3.0",
      "release": "ol 8",
      "fixedVersion": "0:3.0.2-2.0.1.el8_1",
      "fix": "ELSA-2020-0130",
      "url": "https://patchblox.com/security/fix/linux/elsa-2020-0130",
      "released": "2020-01-20T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "dotnet-templates-3.0",
      "release": "RHEL 8",
      "fixedVersion": "0:3.0.102-2.el8_1",
      "fix": "RHSA-2020:0130",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2020-0130",
      "released": "2020-01-16T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "dotnet-templates-3.0",
      "release": "ol 8",
      "fixedVersion": "0:3.0.102-2.0.1.el8_1",
      "fix": "ELSA-2020-0130",
      "url": "https://patchblox.com/security/fix/linux/elsa-2020-0130",
      "released": "2020-01-20T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "netstandard-targeting-pack-2.1",
      "release": "RHEL 8",
      "fixedVersion": "0:3.0.102-2.el8_1",
      "fix": "RHSA-2020:0130",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2020-0130",
      "released": "2020-01-16T00:00:00Z"
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    {
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      "product": "netstandard-targeting-pack-2.1",
      "release": "ol 8",
      "fixedVersion": "0:3.0.102-2.0.1.el8_1",
      "fix": "ELSA-2020-0130",
      "url": "https://patchblox.com/security/fix/linux/elsa-2020-0130",
      "released": "2020-01-20T00:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}