CVE-2018-0961
A remote code execution vulnerability exists when Windows Hyper-V on a host server fails to properly validate vSMB packet data, aka "Hyper-V vSMB Remote Code Execution Vulnerability." This affects Windows Server 2016, Windows 10, Windows 10 Servers.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.10%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A remote code execution vulnerability exists when Windows Hyper-V on a host server fails to properly validate vSMB packet data, aka "Hyper-V vSMB Remote Code Execution Vulnerability." This affects Windows Server 2016, Windows 10, Windows 10 Servers.
- CVSS 3.0
- 7.6 HIGHCVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
- EPSS
- 3.10% probability · 88th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- microsoft/windows 10 · microsoft/windows server 2016
- Source
- secure@microsoft.com
EPSS 3.1% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.securityfocus.com/bid/104032Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1040843Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0961Patch, Vendor Advisory
- http://www.securityfocus.com/bid/104032Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1040843Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0961Patch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.