HIGH 7.8 Microsoft
CVE-2026-70354
.NET Core Remote Code Execution Vulnerability
Microsoft Security Update 2026-Aug: .NET Core Remote Code Execution Vulnerability
Affected Products
- 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
- Microsoft .NET Framework 3.5 on Windows Server 2012
- Microsoft .NET Framework 3.5 on Windows Server 2012 (Server Core installation)
- Microsoft .NET Framework 3.5 on Windows 11 Version 26H1 for ARM64-based Systems
- Microsoft .NET Framework 3.5 on Windows Server 2012 R2
- 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
- Microsoft .NET Framework 3.5 on Windows Server 2012 R2 (Server Core installation)
- Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70354
- https://nvd.nist.gov/vuln/detail/CVE-2026-70354
This high severity vulnerability with a CVSS score of 7.8 was published on 2026-08-11 via Microsoft. Affected: 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, Microsoft .NET Framework 3.5 on Windows Server 2012, Microsoft .NET Framework 3.5 on Windows Server 2012 (Server Core installation) and 5 more.
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