CVE-2018-8420

high-risk
Published 2018-09-13

A remote code execution vulnerability exists when the Microsoft XML Core Services MSXML parser processes user input, aka "MS XML Remote Code Execution Vulnerability." This affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers.

Do I need to act?

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53.1% chance of exploitation in next 30 days
EPSS score — higher than 47% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10 High
NETWORK / LOW complexity

Affected Products (16)

Affected Vendors

Microsoft

References (6)

Third Party Advisory http://www.securityfocus.com/bid/105259
Third Party Advisory http://www.securitytracker.com/id/1041627
Patch https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8420
Third Party Advisory http://www.securityfocus.com/bid/105259
Third Party Advisory http://www.securitytracker.com/id/1041627
Patch https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8420
66
/ 100
high-risk
Severity 30/34 · Critical
Exploitability 18/34 · Moderate
Exposure 18/34 · Moderate