Vulnerability identifier: #VU22694
Vulnerability risk: High
CVSSv3.1: 7 [CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-20
Exploitation vector: 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 user to execute arbitrary code on the target system.
The vulnerability exists due to insufficient validation of user-supplied input when Microsoft Hyper-V Network Switch on a host server does not properly validate input from a privileged user on a guest operating system. A remote administrator can use a speciallly crafted application and execute arbitrary code on the target system.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Windows: 10 1709 - 10 1903
Windows Server: 2019 - 2019 1903
External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0721
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.