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CVE-2017-8540

CWE-787

Critical

91.5

RPS

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.

Source: NVD

Signals

CVSS
7.8
High · v3.1
EPSS
71.87%
Probability of exploitation in the next 30 days (FIRST)
CISA KEV
In CISA KEV since Mar 2022
Fix commit
No known fix commit
Sources: MoreFixes, FreshFixes
Weakness
CWE-787
Published
26 May 2017
Last modified 22 Apr 2026

How to read these signals: RPS · EPSS · CISA KEV · Data sources

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Data as of 7 Oct 2026, 05:16 UK time

CVE-2017-8540 · RPS 91.5 · DevSecure Intelligence