CVE-2018-0986

Name: CVE-2018-0986
Creator: NVD / NIST
Published: 2018-04-04T17:29:01.583+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 61.48%

Last modified Jun 17, 2026

CVE-2018-0986 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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.. EPSS estimates a 61.48% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability

61.48%

99.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Microsoft	Exchange Server	2013
Microsoft	Exchange Server	2016
Microsoft	Security Essentials	All versions
Microsoft	Forefront Endpoint Protection 2010	All versions
Microsoft	Intune Endpoint Protection	All versions
Microsoft	System Center Endpoint Protection	All versions
Microsoft	System Center Endpoint Protection	2012
Microsoft	Windows Defender	All versions

References

http://www.securityfocus.com/bid/103593Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1040631Third Party Advisory, VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0986Patch, Vendor Advisory
https://www.exploit-db.com/exploits/44402/Exploit, Third Party Advisory, VDB Entry
http://www.securityfocus.com/bid/103593Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1040631Third Party Advisory, VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0986Patch, Vendor Advisory
https://www.exploit-db.com/exploits/44402/Exploit, Third Party Advisory, VDB Entry

Timeline

Published: Apr 4, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-0986?

How severe is CVE-2018-0986?

CVE-2018-0986 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 61.48% probability of exploitation in the next 30 days.

How do I fix CVE-2018-0986?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-0986?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST