CVE-2017-8558

high-risk
Published 2017-06-29

The Microsoft Malware Protection Engine running on Microsoft Forefront and Microsoft Defender on 32-bit versions of 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 does not properly scan a specially crafted file leading to memory corruption. aka "Microsoft Malware Protection Engine Remote Code Execution Vulnerability".

Do I need to act?

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57.8% chance of exploitation in next 30 days
EPSS score — higher than 42% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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1 public exploit available
42264
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.8/10 High
LOCAL / LOW complexity

Affected Products (6)

Affected Vendors

Microsoft

References (10)

Third Party Advisory http://www.securityfocus.com/bid/99262
Third Party Advisory http://www.securitytracker.com/id/1038783
Third Party Advisory http://www.securitytracker.com/id/1038784
Vendor Advisory https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8558
Third Party Advisory https://www.exploit-db.com/exploits/42264/
Third Party Advisory http://www.securityfocus.com/bid/99262
Third Party Advisory http://www.securitytracker.com/id/1038783
Third Party Advisory http://www.securitytracker.com/id/1038784
Vendor Advisory https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8558
Third Party Advisory https://www.exploit-db.com/exploits/42264/
62
/ 100
high-risk
Severity 24/34 · High
Exploitability 25/34 · High
Exposure 13/34 · Low