{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2019-0657",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2019-0657",
    "idYear": 2019,
    "status": "PUBLISHED",
    "publishedAt": "2019-03-06T00:00:00.000Z",
    "updatedAt": "2024-08-04T17:51:27.244Z",
    "importedAt": "2026-10-24T01:56:04.670Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": null,
      "summary": "A vulnerability exists in certain .Net Framework API's and Visual Studio in the way they parse URL's, aka '.NET Framework and Visual Studio Spoofing Vulnerability'.",
      "affected": [
        {
          "vendor": "Microsoft",
          "product": "Microsoft .NET Framework 4.5.2",
          "versions": [
            {
              "version": "Windows 7 for 32-bit Systems Service Pack 1",
              "status": "affected"
            },
            {
              "version": "Windows 7 for x64-based Systems Service Pack 1",
              "status": "affected"
            },
            {
              "version": "Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)",
              "status": "affected"
            },
            {
              "version": "Windows Server 2008 R2 for x64-based Systems Service Pack 1",
              "status": "affected"
            },
            {
              "version": "Windows Server 2012",
              "status": "affected"
            },
            {
              "version": "Windows Server 2012 (Server Core installation)",
              "status": "affected"
            },
            {
              "version": "Windows 8.1 for 32-bit systems",
              "status": "affected"
            },
            {
              "version": "Windows 8.1 for x64-based systems",
              "status": "affected"
            },
            {
              "version": "Windows Server 2012 R2",
              "status": "affected"
            },
            {
              "version": "Windows RT 8.1",
              "status": "affected"
            },
            {
              "version": "Windows Server 2012 R2 (Server Core installation)",
              "status": "affected"
            },
            {
              "version": "Windows Server 2008 for 32-bit Systems Service Pack 2",
              "status": "affected"
            },
            {
              "version": "Windows Server 2008 for x64-based Systems Service Pack 2",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Microsoft .NET Framework 4.6",
          "versions": [
            {
              "version": "Windows Server 2008 for 32-bit Systems Service Pack 2",
              "status": "affected"
            },
            {
              "version": "Windows Server 2008 for x64-based Systems Service Pack 2",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": ".NET Core",
          "versions": [
            {
              "version": "1",
              "status": "affected"
            },
            {
              "version": "2.1",
              "status": "affected"
            },
            {
              "version": "2.2",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Microsoft Visual Studio",
          "versions": [
            {
              "version": "2017",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Microsoft .NET Framework 4.7.2",
          "versions": [
            {
              "version": "Windows 10 Version 1803 for 32-bit Systems",
              "status": "affected"
            },
            {
              "version": "Windows 10 Version 1803 for x64-based Systems",
              "status": "affected"
            },
            {
              "version": "Windows Server, version 1803  (Server Core Installation)",
              "status": "affected"
            },
            {
              "version": "Windows 10 Version 1803 for ARM64-based Systems",
              "status": "affected"
            },
            {
              "version": "Windows 10 Version 1809 for 32-bit Systems",
              "status": "affected"
            },
            {
              "version": "Windows 10 Version 1809 for x64-based Systems",
              "status": "affected"
            },
            {
              "version": "Windows Server 2019",
              "status": "affected"
            },
            {
              "version": "Windows Server 2019  (Server Core installation)",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Microsoft .NET Framework 4.6/4.6.1/4.6.2",
          "versions": [
            {
              "version": "Windows 10 for 32-bit Systems",
              "status": "affected"
            },
            {
              "version": "Windows 10 for x64-based Systems",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2",
          "versions": [
            {
              "version": "Windows 7 for 32-bit Systems Service Pack 1",
              "status": "affected"
            },
            {
              "version": "Windows 7 for x64-based Systems Service Pack 1",
              "status": "affected"
            },
            {
              "version": "Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)",
              "status": "affected"
            },
            {
              "version": "Windows Server 2008 R2 for x64-based Systems Service Pack 1",
              "status": "affected"
            },
            {
              "version": "Windows Server 2012",
              "status": "affected"
            },
            {
              "version": "Windows Server 2012 (Server Core installation)",
              "status": "affected"
            },
            {
              "version": "Windows 8.1 for 32-bit systems",
              "status": "affected"
            },
            {
              "version": "Windows 8.1 for x64-based systems",
              "status": "affected"
            },
            {
              "version": "Windows Server 2012 R2",
              "status": "affected"
            },
            {
              "version": "Windows RT 8.1",
              "status": "affected"
            },
            {
              "version": "Windows Server 2012 R2 (Server Core installation)",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2",
          "versions": [
            {
              "version": "Windows Server 2016",
              "status": "affected"
            },
            {
              "version": "Windows 10 Version 1607 for 32-bit Systems",
              "status": "affected"
            },
            {
              "version": "Windows 10 Version 1607 for x64-based Systems",
              "status": "affected"
            },
            {
              "version": "Windows Server 2016  (Server Core installation)",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Microsoft .NET Framework 4.7/4.7.1/4.7.2",
          "versions": [
            {
              "version": "Windows 10 Version 1703 for 32-bit Systems",
              "status": "affected"
            },
            {
              "version": "Windows 10 Version 1703 for x64-based Systems",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Microsoft .NET Framework 4.7.1/4.7.2",
          "versions": [
            {
              "version": "Windows 10 Version 1709 for 32-bit Systems",
              "status": "affected"
            },
            {
              "version": "Windows 10 Version 1709 for x64-based Systems",
              "status": "affected"
            },
            {
              "version": "Windows Server, version 1709  (Server Core Installation)",
              "status": "affected"
            },
            {
              "version": "Windows 10 Version 1709 for ARM64-based Systems",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "PowerShell Core",
          "versions": [
            {
              "version": "6.1",
              "status": "affected"
            },
            {
              "version": "6.2",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Microsoft Visual Studio 2017",
          "versions": [
            {
              "version": "version 15.9",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Microsoft .NET Framework 3.5",
          "versions": [
            {
              "version": "Windows Server 2012",
              "status": "affected"
            },
            {
              "version": "Windows Server 2012 (Server Core installation)",
              "status": "affected"
            },
            {
              "version": "Windows 8.1 for 32-bit systems",
              "status": "affected"
            },
            {
              "version": "Windows 8.1 for x64-based systems",
              "status": "affected"
            },
            {
              "version": "Windows Server 2012 R2",
              "status": "affected"
            },
            {
              "version": "Windows Server 2012 R2 (Server Core installation)",
              "status": "affected"
            },
            {
              "version": "Windows 10 for 32-bit Systems",
              "status": "affected"
            },
            {
              "version": "Windows 10 for x64-based Systems",
              "status": "affected"
            },
            {
              "version": "Windows Server 2016",
              "status": "affected"
            },
            {
              "version": "Windows 10 Version 1607 for 32-bit Systems",
              "status": "affected"
            },
            {
              "version": "Windows 10 Version 1607 for x64-based Systems",
              "status": "affected"
            },
            {
              "version": "Windows 10 Version 1703 for 32-bit Systems",
              "status": "affected"
            },
            {
              "version": "Windows 10 Version 1703 for x64-based Systems",
              "status": "affected"
            },
            {
              "version": "Windows 10 Version 1709 for 32-bit Systems",
              "status": "affected"
            },
            {
              "version": "Windows 10 Version 1709 for x64-based Systems",
              "status": "affected"
            },
            {
              "version": "Windows Server, version 1709  (Server Core Installation)",
              "status": "affected"
            },
            {
              "version": "Windows 10 Version 1803 for 32-bit Systems",
              "status": "affected"
            },
            {
              "version": "Windows 10 Version 1803 for x64-based Systems",
              "status": "affected"
            },
            {
              "version": "Windows Server, version 1803  (Server Core Installation)",
              "status": "affected"
            },
            {
              "version": "Windows 10 Version 1803 for ARM64-based Systems",
              "status": "affected"
            },
            {
              "version": "Windows 10 Version 1809 for 32-bit Systems",
              "status": "affected"
            },
            {
              "version": "Windows 10 Version 1809 for x64-based Systems",
              "status": "affected"
            },
            {
              "version": "Windows Server 2019",
              "status": "affected"
            },
            {
              "version": "Windows Server 2019  (Server Core installation)",
              "status": "affected"
            },
            {
              "version": "Windows 10 Version 1709 for ARM64-based Systems",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Microsoft .NET Framework 3.0",
          "versions": [
            {
              "version": "Service Pack 2 on Windows Server 2008 for Itanium-Based Systems Service Pack 2",
              "status": "affected"
            },
            {
              "version": "Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2",
              "status": "affected"
            },
            {
              "version": "Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Microsoft .NET Framework 2.0",
          "versions": [
            {
              "version": "Service Pack 2 on Windows Server 2008 for Itanium-Based Systems Service Pack 2",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Microsoft .NET Framework 3.5.1",
          "versions": [
            {
              "version": "Windows 7 for 32-bit Systems Service Pack 1",
              "status": "affected"
            },
            {
              "version": "Windows 7 for x64-based Systems Service Pack 1",
              "status": "affected"
            },
            {
              "version": "Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)",
              "status": "affected"
            },
            {
              "version": "Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1",
              "status": "affected"
            },
            {
              "version": "Windows Server 2008 R2 for x64-based Systems Service Pack 1",
              "status": "affected"
            }
          ]
        }
      ]
    }
  }
}