CVE-2017-8540

Known Exploited Public Exploit

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.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 88.63% Top 5%
KEV Since 
Vendor Advisory microsoft.com
Affected: Microsoft Corporation Malware Protection Engine
Published at:
Updated at:

References

Link Tags
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8540 patch vendor advisory mitigation
http://www.securityfocus.com/bid/98703 vdb entry third party advisory broken link
https://www.exploit-db.com/exploits/42088/ exploit vdb entry third party advisory
http://www.securitytracker.com/id/1038571 vdb entry third party advisory broken link

Frequently Asked Questions

What is the severity of CVE-2017-8540?
CVE-2017-8540 has been scored as a high severity vulnerability.
How to fix CVE-2017-8540?
To fix CVE-2017-8540, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-8540 being actively exploited in the wild?
It is confirmed that CVE-2017-8540 is actively exploited. Be extra cautious if you are using vulnerable components. According to its EPSS score, there is a ~89% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2017-8540?
CVE-2017-8540 affects Microsoft Corporation Malware Protection Engine.
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