CVE-2018-8434 — MEDIUM (5.4)

Vulnerability Description

An information disclosure vulnerability exists when Windows Hyper-V on a host operating system fails to properly validate input from an authenticated user on a guest operating system, aka "Windows Hyper-V Information Disclosure 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.

CVSS Score

5.4

MEDIUM

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

Attack Vector

ADJACENT_NETWORK

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

NONE

Scope

CHANGED

Confidentiality

HIGH

Integrity

NONE

Availability

NONE

Affected Products

Vendor	Product	Versions
Microsoft	Windows 10	-
Microsoft	Windows 7	-
Microsoft	Windows 8.1	-
Microsoft	Windows Server 2008	sp2
Microsoft	Windows Server 2012	All versions
Microsoft	Windows Server 2016	All versions

Related Weaknesses (CWE)

CWE-20 CWE-200

References

http://www.securityfocus.com/bid/105239Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1041624Third Party AdvisoryVDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8434PatchVendor Advisory
http://www.securityfocus.com/bid/105239Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1041624Third Party AdvisoryVDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8434PatchVendor Advisory

FAQ

What is CVE-2018-8434?

CVE-2018-8434 is a vulnerability with a CVSS score of 5.4 (MEDIUM). An information disclosure vulnerability exists when Windows Hyper-V on a host operating system fails to properly validate input from an authenticated user on a guest operating system, aka "Windows Hyp...

How severe is CVE-2018-8434?

CVE-2018-8434 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2018-8434?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Windows 10, Microsoft Windows 7, Microsoft Windows 8.1, Microsoft Windows Server 2008, Microsoft Windows Server 2012.