CVE-2018-8399: An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka "Win32k Elevation of Privilege Vulnerability."…

High severity · published Aug 15, 2018

CVE-2018-8399

An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka "Win32k Elevation of Privilege Vulnerability."…

7.0

CVSS

1.2%

EPSS

On KEV

Description

An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka "Win32k Elevation of Privilege Vulnerability." This affects Windows 10 Servers, Windows 10. This CVE ID is unique from CVE-2018-8404.

CVSS vector

CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack vector

Local

Complexity

High

Privileges

Low

User interaction

None

Confidentiality

High

Integrity

High

Availability

High

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)1.2% · higher than 67% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

Windows · Microsoft

Version 1703 for 32-bit Systems; Version 1703 for x64-based Systems; Version 1709 for 32-bit Systems; Version 1709 for x64-based Systems; Version 1803 for 32-bit Systems; Version 1803 for x64-based Systems · source: vendor, NVD

Windows 10 Servers · Microsoft

version 1709 (Server Core Installation); version 1803 (Server Core Installation) · source: vendor

Affected product

Windows

Microsoft

All Windows CVEs

References

NVD

https://nvd.nist.gov/vuln/detail/CVE-2018-8399

CVE.org

https://www.cve.org/CVERecord?id=CVE-2018-8399

Third Party Advisory

http://www.securityfocus.com/bid/104998

Third Party Advisory

http://www.securitytracker.com/id/1041466

Patch

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8399