{
  "cveId": "CVE-2026-70354",
  "url": "https://patchblox.com/security/cve/CVE-2026-70354",
  "summary": "CVE-2026-70354 is fixed in 62 products on 2 platforms, first by Microsoft .NET Windows Desktop Runtime 8.0 8.0.30, released July 23, 2026. 3 other affected products have no fix yet. It is not reported as exploited. Patch Radar priority: High.",
  "title": ".NET Core Remote Code Execution Vulnerability",
  "description": "\u003Cp\u003EOut-of-bounds write in .NET allows an unauthorized attacker to execute code locally.\u003C/p\u003E",
  "published": "2026-08-11T07:00:00Z",
  "severity": "Important",
  "cvss": 7.8,
  "cwe": "Out-of-bounds Write",
  "epss": 0.00363,
  "epssPercentile": 0.30336,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "exploitabilityAssessment": "Exploitation Less Likely",
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70354",
  "fixes": [
    {
      "platform": "microsoft",
      "product": ".NET 10.0 runtime installed on Windows",
      "fixedVersion": "",
      "fix": "KB5122106",
      "url": "https://patchblox.com/security/fix/microsoft/kb5122106",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": ".NET 8.0 runtime installed on Windows",
      "fixedVersion": "",
      "fix": "KB5122104",
      "url": "https://patchblox.com/security/fix/microsoft/kb5122104",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": ".NET 9.0 runtime installed on Windows",
      "fixedVersion": "",
      "fix": "KB5122105",
      "url": "https://patchblox.com/security/fix/microsoft/kb5122105",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 Version 1607 for 32-bit Systems",
      "fixedVersion": "14393.9418",
      "fix": "KB5120418",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120418",
      "released": "2026-08-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 Version 1607 for x64-based Systems",
      "fixedVersion": "14393.9418",
      "fix": "KB5120418",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120418",
      "released": "2026-08-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016",
      "fixedVersion": "14393.9418",
      "fix": "KB5120418",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120418",
      "released": "2026-08-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016 (Server Core installation)",
      "fixedVersion": "14393.9418",
      "fix": "KB5120418",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120418",
      "released": "2026-08-11T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for 32-bit Systems",
      "fixedVersion": "",
      "fix": "KB5120698",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120698",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for ARM64-based Systems",
      "fixedVersion": "",
      "fix": "KB5120698",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120698",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB5120698",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120698",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019",
      "fixedVersion": "",
      "fix": "KB5120698",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120698",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB5120698",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120698",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for 32-bit Systems",
      "fixedVersion": "",
      "fix": "KB5120703",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120703",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for ARM64-based Systems",
      "fixedVersion": "",
      "fix": "KB5120703",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120703",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB5120703",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120703",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 21H2 for 32-bit Systems",
      "fixedVersion": "",
      "fix": "KB5120701",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120701",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 21H2 for ARM64-based Systems",
      "fixedVersion": "",
      "fix": "KB5120701",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120701",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 21H2 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB5120701",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120701",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 22H2 for 32-bit Systems",
      "fixedVersion": "",
      "fix": "KB5120701",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120701",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 22H2 for ARM64-based Systems",
      "fixedVersion": "",
      "fix": "KB5120701",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120701",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 22H2 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB5120701",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120701",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019",
      "fixedVersion": "",
      "fix": "KB5120703",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120703",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB5120703",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120703",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2022",
      "fixedVersion": "",
      "fix": "KB5120705",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120705",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2022 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB5120705",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120705",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 21H2 for 32-bit Systems",
      "fixedVersion": "",
      "fix": "KB5120709",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120709",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 21H2 for ARM64-based Systems",
      "fixedVersion": "",
      "fix": "KB5120709",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120709",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 21H2 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB5120709",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120709",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 22H2 for 32-bit Systems",
      "fixedVersion": "",
      "fix": "KB5120709",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120709",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 22H2 for ARM64-based Systems",
      "fixedVersion": "",
      "fix": "KB5120709",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120709",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 22H2 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB5120709",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120709",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 23H2 for ARM64-based Systems",
      "fixedVersion": "",
      "fix": "KB5120713",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120713",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 23H2 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB5120713",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120713",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 24H2 for ARM64-based Systems",
      "fixedVersion": "",
      "fix": "KB5120710",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120710",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 24H2 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB5120710",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120710",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 25H2 for ARM64-based Systems",
      "fixedVersion": "",
      "fix": "KB5120708",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120708",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 25H2 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB5120708",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120708",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 3.5 AND 4.8.1 on Windows Server 2022",
      "fixedVersion": "",
      "fix": "KB5120714",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120714",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 3.5 AND 4.8.1 on Windows Server 2022 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB5120714",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120714",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 3.5 AND 4.8.1 on Windows Server 2025",
      "fixedVersion": "",
      "fix": "KB5120708",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120708",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 3.5 AND 4.8.1 on Windows Server 2025 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB5120708",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120708",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 3.5 on Windows 11 Version 26H1 for ARM64-based Systems",
      "fixedVersion": "",
      "fix": "KB5120747",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120747",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 3.5 on Windows 11 version 26H1 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB5120747",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120747",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 3.5 on Windows Server 2012",
      "fixedVersion": "",
      "fix": "KB5120716",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120716",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 3.5 on Windows Server 2012 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB5120716",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120716",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 3.5 on Windows Server 2012 R2",
      "fixedVersion": "",
      "fix": "KB5120695",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120695",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 3.5 on Windows Server 2012 R2 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB5120695",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120695",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012",
      "fixedVersion": "",
      "fix": "KB5120699",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120699",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB5120699",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120699",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 R2",
      "fixedVersion": "",
      "fix": "KB5120700",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120700",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 R2 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB5120700",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120700",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit Systems",
      "fixedVersion": "",
      "fix": "KB5120702",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120702",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB5120702",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120702",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 4.8 on Windows Server 2012",
      "fixedVersion": "",
      "fix": "KB5120704",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120704",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 4.8 on Windows Server 2012 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB5120704",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120704",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 4.8 on Windows Server 2012 R2",
      "fixedVersion": "",
      "fix": "KB5120706",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120706",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 4.8 on Windows Server 2012 R2 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB5120706",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120706",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 4.8 on Windows Server 2016",
      "fixedVersion": "",
      "fix": "KB5120702",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120702",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 4.8 on Windows Server 2016 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB5120702",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120702",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 4.8.1 on Windows 11 Version 26H1 for ARM64-based Systems",
      "fixedVersion": "",
      "fix": "KB5120711",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120711",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft .NET Framework 4.8.1 on Windows 11 version 26H1 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB5120711",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120711",
      "released": "2026-08-11T07:00:00Z"
    },
    {
      "platform": "windows-app",
      "product": "Microsoft .NET Windows Desktop Runtime 8.0",
      "fixedVersion": "8.0.30",
      "fix": "Microsoft .NET Windows Desktop Runtime 8.0 8.0.30",
      "url": "https://patchblox.com/security/fix/windows-app/microsoft.dotnet.desktopruntime.8-8.0.30",
      "released": "2026-07-23T00:00:00Z"
    }
  ],
  "noFixYet": [
    {
      "platform": "Windows apps",
      "product": "Microsoft Windows Desktop Runtime - 8.0.25 (arm64)",
      "status": "no-fix",
      "affectedVersion": "8.0.25"
    },
    {
      "platform": "Windows apps",
      "product": "Microsoft Windows Desktop Runtime - 8.0.25 (x64)",
      "status": "no-fix",
      "affectedVersion": "8.0.25"
    },
    {
      "platform": "Windows apps",
      "product": "Microsoft Windows Desktop Runtime - 8.0.25 (x86)",
      "status": "no-fix",
      "affectedVersion": "8.0.25"
    }
  ],
  "dataAsOf": "2026-11-09T07:25:28Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}