CVE-2018-8435

4.2 mediumEPSS 1.4%

Medium (4.2) in microsoft. EPSS 1.4% chance of exploitation in the next 30 days.

A security feature bypass vulnerability exists when Windows Hyper-V BIOS loader fails to provide a high-entropy source, aka "Windows Hyper-V Security Feature Bypass Vulnerability." This affects Windows Server 2016, Windows 10, Windows 10 Servers.

Severity

CVSS 3.0

4.2 medium

CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N

EPSS: 1.4% chance of exploitation in the next 30 days; higher than 71% of CVEs (scores of 2026-10-31)
CWE: CWE-331
Published: 2018-09-13
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

microsoft:windows_10
microsoft:windows_server_2016

References

http://www.securityfocus.com/bid/105240
http://www.securitytracker.com/id/1041624
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8435
http://www.securityfocus.com/bid/105240
http://www.securitytracker.com/id/1041624

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