SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2015-2361

Hyper-V in Microsoft Windows 8.1 and Windows Server 2012 R2 does not properly initialize guest OS system data structures, which allows guest OS users to execute arbitrary code on the host OS or cause a denial of service (buffer overflow) by leveraging…

HIGH 7.2EPSS 1.88%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (1.88%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

Hyper-V in Microsoft Windows 8.1 and Windows Server 2012 R2 does not properly initialize guest OS system data structures, which allows guest OS users to execute arbitrary code on the host OS or cause a denial of service (buffer overflow) by leveraging guest OS privileges, aka "Hyper-V Buffer Overflow Vulnerability."

CVSS 2.0
7.2 HIGHAV:L/AC:L/Au:N/C:C/I:C/A:C
EPSS
1.88% probability · 78th percentile
CISA KEV
Not listed
Weakness
CWE-119
Affected
microsoft/windows 8.1 · microsoft/windows server 2012
Source
secure@microsoft.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.