CVE-2017-8535

Name: CVE-2017-8535
Creator: NVD / NIST
Published: 2017-05-26T20:29:00.21+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 16.83%

Last modified Jun 17, 2026

CVE-2017-8535 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. 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, Microsoft Exchange Server 2013 and 2016, does not properly scan a specially crafted file leading to denial of service. aka "Microsoft Malware Protection Engine Denial of Service Vulnerability", a different vulnerability than CVE-2017-8536, CVE-2017-8537, CVE-2017-8539, and CVE-2017-8542.. EPSS estimates a 16.83% chance of exploitation in the next 30 days.

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, Microsoft Exchange Server 2013 and 2016, does not properly scan a specially crafted file leading to denial of service. aka "Microsoft Malware Protection Engine Denial of Service Vulnerability", a different vulnerability than CVE-2017-8536, CVE-2017-8537, CVE-2017-8539, and CVE-2017-8542.

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

16.83%

96.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

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

References

http://www.securityfocus.com/bid/98702Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1038571Third Party Advisory, VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8535Patch, Vendor Advisory
https://www.exploit-db.com/exploits/42081/Third Party Advisory, VDB Entry
http://www.securityfocus.com/bid/98702Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1038571Third Party Advisory, VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8535Patch, Vendor Advisory
https://www.exploit-db.com/exploits/42081/Third Party Advisory, VDB Entry

Timeline

Published: May 26, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-8535?

How severe is CVE-2017-8535?

CVE-2017-8535 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 16.83% probability of exploitation in the next 30 days.

How do I fix CVE-2017-8535?

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-2017-8535?

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

Scan your code now

Source: NVD / NIST