Vulnerability identifier: #VU7749

Vulnerability risk: Medium

CVSSv3.1: 8.3 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-8664

CWE-ID: CWE-20

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
Windows
Operating systems & Components / Operating system
Windows Server
Operating systems & Components / Operating system

Vendor: Microsoft

Description

The vulnerability allows a remote attacker to execute arbitrary code on the host server.

The vulnerability exists due to an error within Windows Hyper-V when processing input from guest operating system. A local user with access to guest operating system can execute arbitrary code on the host server.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable Hyper-V host server.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Windows: 8.1, 10

Windows Server: 2012 - 2016

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External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8664

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.