CVE-2018-0961

Hyper-V vSMB Remote Code Execution Vulnerability

CVE-2018-0961 is fixed in 8 products on 1 platform, first by KB4103723, released May 8, 2018. It is not reported as exploited. Patch Radar priority: Urgent.

Urgent
CVSS
7.6
Critical
Exploitation
None reported
Exploitation Less Likely
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0310
87th percentile

<p>A remote code execution vulnerability exists when Windows Hyper-V on a host server fails to properly validate vSMB packet data. An attacker who successfully exploited these vulnerabilities could execute arbitrary code on a target operating system.</p> <p>To exploit these vulnerabilities, an attacker running inside a virtual machine could run a specially crafted application that could cause the Hyper-V host operating system to execute arbitrary code.</p> <p>The update addresses the vulnerabilities by correcting how Windows Hyper-V validates vSMB packet data.</p>

Where it's fixed

ProductFixed inFixReleased
Microsoft
Windows 10 Version 1607 for x64-based Systems 14393.2248 KB4103723 May 8, 2018
Windows 10 Version 1703 for x64-based Systems 15063.1088 KB4103731 May 8, 2018
Windows 10 Version 1709 for x64-based Systems 16299.431 KB4103727 May 8, 2018
Windows 10 Version 1803 for x64-based Systems 17134.48 KB4103721 May 8, 2018
Windows Server 2016 14393.2248 KB4103723 May 8, 2018
Windows Server 2016 (Server Core installation) 14393.2248 KB4103723 May 8, 2018
Windows Server, version 1709 (Server Core Installation) 16299.431 KB4103727 May 8, 2018
Windows Server, version 1803 (Server Core Installation) 17134.48 KB4103721 May 8, 2018

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