VulnerabilityModified

CVE-2018-0959

HIGH 7.6EPSS 9.80%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (9.80%). 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 input from an authenticated user on a guest operating system, aka "Hyper-V Remote Code Execution Vulnerability." This affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, 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: 9.80% probability · 96th percentile
Public exploits: None in Exploit-DB
CISA KEV: Not listed
Weakness: CWE-20
Affected: microsoft/windows 10 · microsoft/windows 7 · microsoft/windows 8.1 · microsoft/windows rt 8.1 · microsoft/windows server 2008 · microsoft/windows server 2012 · microsoft/windows server 2016
Source: secure@microsoft.com

EPSS trend

EPSS 9.8% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

http://www.securityfocus.com/bid/104031Third 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-2018-0959Patch, Vendor Advisory
http://www.securityfocus.com/bid/104031Third 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-2018-0959Patch, Vendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.