VulnerabilityModified

CVE-2017-8558

HIGH 7.8EPSS 43.6%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 43.6%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.

Description

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".

CVSS 3.0: 7.8 HIGHCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS: 43.59% probability · 99th percentile
CISA KEV: Not listed
Weakness: CWE-119
Affected: microsoft/windows defender · microsoft/endpoint protection · microsoft/forefront endpoint protection · microsoft/security essentials · microsoft/windows intune endpoint protection
Source: secure@microsoft.com

References

http://www.securityfocus.com/bid/99262Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1038783Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1038784Third Party Advisory, VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8558Vendor Advisory
https://www.exploit-db.com/exploits/42264/Third Party Advisory, VDB Entry
http://www.securityfocus.com/bid/99262Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1038783Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1038784Third Party Advisory, VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8558Vendor Advisory
https://www.exploit-db.com/exploits/42264/Third Party Advisory, VDB Entry

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.