CVE-2018-8399

Name: CVE-2018-8399
Creator: NVD / NIST
Published: 2018-08-15T17:29:09.19+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.07%

Last modified Jun 17, 2026

CVE-2018-8399 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 1.07% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

1.07%

60.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-404

Affected Software

Vendor	Product	Versions
Microsoft	Windows 10	1703
Microsoft	Windows 10	1709
Microsoft	Windows 10	1803
Microsoft	Windows Server	1709
Microsoft	Windows Server	1803

References

http://www.securityfocus.com/bid/104998Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1041466Third Party Advisory, VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8399Patch, Vendor Advisory
http://www.securityfocus.com/bid/104998Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1041466Third Party Advisory, VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8399Patch, Vendor Advisory

Timeline

Published: Aug 15, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-8399?

How severe is CVE-2018-8399?

Severity scoring for CVE-2018-8399 is pending analysis. The EPSS model estimates a 1.07% probability of exploitation in the next 30 days.

How do I fix CVE-2018-8399?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-8399?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST