CVE-2017-8540

high Microsoft ⚠️ CISA KEV — Exploited in the Wild
CVSS v3 Base Score
7.8
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score
84.6%
Exploitation probability in 30 days
Top 1% most likely to be exploited
Attack Characteristics
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Published: May 26, 2017 (3275 days ago)
Last Modified: April 22, 2026
Vendor: Microsoft
Source: NVD

⚠️ CISA Known Exploited Vulnerability

Added to KEV: 2022-03-03
Remediation Due: 2022-03-24 (⚠ 1513d overdue)

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.

CWE

CWE-787

Affected Products

microsoft malware protection enginemicrosoft endpoint protectionmicrosoft exchange servermicrosoft forefront endpoint protectionmicrosoft forefront securitymicrosoft intune endpoint protectionmicrosoft security essentialsmicrosoft system center endpoint protectionmicrosoft windows defender

References

🔗 www.securityfocus.com 🔗 www.securitytracker.com 🔗 portal.msrc.microsoft.com 🔗 www.exploit-db.com 🔗 www.securityfocus.com