CVE-2017-8625

high-risk
Published 2017-08-08

Internet Explorer in Windows 10 Gold, 1511, 1607, 1703, and Windows Server 2016 allows an attacker to bypass Device Guard User Mode Code Integrity (UMCI) policies due to Internet Explorer failing to validate UMCI policies, aka "Internet Explorer Security Feature Bypass Vulnerability".

Do I need to act?

!
69.8% chance of exploitation in next 30 days
EPSS score — higher than 30% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10 High
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Microsoft

References (10)

Third Party Advisory http://www.securityfocus.com/bid/100063
Third Party Advisory http://www.securitytracker.com/id/1039112
https://oddvar.moe/2017/08/13/bypassing-device-guard-umci-using-chm-cve-2017-862...
Patch https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8625
Exploit https://posts.specterops.io/umci-vs-internet-explorer-exploring-cve-2017-8625-39...
Third Party Advisory http://www.securityfocus.com/bid/100063
Third Party Advisory http://www.securitytracker.com/id/1039112
https://oddvar.moe/2017/08/13/bypassing-device-guard-umci-using-chm-cve-2017-862...
Patch https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8625
Exploit https://posts.specterops.io/umci-vs-internet-explorer-exploring-cve-2017-8625-39...
54
/ 100
high-risk
Severity 30/34 · Critical
Exploitability 19/34 · Moderate
Exposure 5/34 · Minimal