---
title: "CVE-2018-0986: Microsoft Windows Defender vulnerability | CubePath"
description: "A remote code execution vulnerability exists when the Microsoft Malware Protection Engine does not properly scan a specially crafted file, leading…"
language: en
source: https://cubepath.com/security/cve/CVE-2018-0986
---

# CVE-2018-0986: Microsoft Windows Defender vulnerability | CubePath

## 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.

Official description from the CVE record, published by microsoft. Copyright © 1999-2026 The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CVE license. [View the record on cve.org](https://www.cve.org/CVERecord?id=CVE-2018-0986)

## Key data

### EPSS

Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days.

Score

0.63268 (63.3% probability)

Percentile

99.2%

Scores of

Nov 10, 2026

Model

v2026.06.15

## Affected products

Products listed in the CVE record, as the CNA published them.

- Microsoft Windows Defender

  - affected: Windows 10 for 32-bit Systems
  - affected: Windows 10 for x64-based Systems
  - affected: Windows 10 Version 1511 for 32-bit Systems
  - affected: Windows 10 Version 1511 for x64-based Systems
  - affected: Windows 10 Version 1607 for 32-bit Systems
  - affected: Windows 10 Version 1607 for x64-based Systems
  - affected: Windows 10 Version 1703 for 32-bit Systems
  - affected: Windows 10 Version 1703 for x64-based Systems
  - affected: Windows 10 Version 1709 for 32-bit Systems
  - affected: Windows 10 Version 1709 for x64-based Systems
  - affected: Windows 7 for 32-bit Systems Service Pack 1
  - affected: Windows 7 for x64-based Systems Service Pack 1
  - affected: Windows 8.1 for 32-bit systems
  - affected: Windows 8.1 for x64-based systems
  - affected: Windows RT 8.1
  - affected: Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1
  - affected: Windows Server 2008 R2 for x64-based Systems Service Pack 1
  - affected: Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
  - affected: Windows Server 2012
  - affected: Windows Server 2012 (Server Core installation)
  - affected: Windows Server 2012 R2
  - affected: Windows Server 2012 R2 (Server Core installation)
  - affected: Windows Server 2016
  - affected: Windows Server 2016 (Server Core installation)
  - affected: Windows Server, version 1709 (Server Core Installation)
- Microsoft Windows Intune Endpoint Protection

  - affected: Windows Intune Endpoint Protection
- Microsoft Security Essentials

  - affected: Microsoft Security Essentials
- Microsoft System Center Endpoint Protection

  - affected: Microsoft System Center Endpoint Protection
- Microsoft Exchange Server

  - affected: 2013
  - affected: 2016
- Microsoft System Center

  - affected: 2012 Endpoint Protection
  - affected: 2012 R2 Endpoint Protection
- Microsoft Forefront Endpoint Protection

  - affected: 2010

## References

Links listed in the CVE record. They lead to other sites, which CubePath does not control.

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

## Timeline

1. ID reserved Dec 1, 2017
2. Record published Apr 4, 2018
3. Record last updated Aug 5, 2024

## Look up another CVE

## About CubePath

CubePath is a cloud provider with data centers in Europe and the United States. It offers VPS, bare metal servers and DDoS protection.

[Cloud VPS](https://cubepath.com/vps) [DDoS protection](https://cubepath.com/ddos-protection)

Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 20:00 UTC. [Sources and licenses](https://cubepath.com/security/cve/legal)