#VU26778 Buffer overflow in Windows and Windows Server


Published: 2020-04-14

Vulnerability identifier: #VU26778

Vulnerability risk: Medium

CVSSv3.1: 7.3 [CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-0918

CWE-ID: CWE-119

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 user to escalate privileges on the target system.

The vulnerability exists due to a boundary error in the Windows Hyper-V on a host server. A remote administrator on the local network can trigger memory corruption and gain elevated privileges on a target operating system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Windows: 10 1809 - 10 1909

Windows Server: 2019 - 2019 1909


External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0918


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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


Latest bulletins with this vulnerability