CVE-2017-8540

7.8 HIGH CISA KEV - Actively Exploited
Published: May 26, 2017 Modified: October 22, 2025
View on NVD

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 memory corruption. aka "Microsoft Malware Protection Engine Remote Code Execution Vulnerability", a different vulnerability than CVE-2017-8538 and CVE-2017-8541.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://www.securityfocus.com/bid/98703
Source: secure@microsoft.com
Broken Link Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1038571
Source: secure@microsoft.com
Broken Link Third Party Advisory VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8540
Source: secure@microsoft.com
Mitigation Patch Vendor Advisory
https://www.exploit-db.com/exploits/42088/
Source: secure@microsoft.com
Exploit Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/98703
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1038571
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link Third Party Advisory VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8540
Source: af854a3a-2127-422b-91ae-364da2661108
Mitigation Patch Vendor Advisory
https://www.exploit-db.com/exploits/42088/
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Third Party Advisory VDB Entry
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-8540
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

9 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.8 / 10.0
EPSS (Exploit Probability)
84.6%
99th percentile
Exploitation Status
Actively Exploited
Remediation due: 2022-03-24

Weaknesses (CWE)

CWE-787 CWE-787

Affected Vendors

microsoft

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