VULNERABILITY INTELLIGENCE

CVE-2018-8589

CVSS score7.8 HIGH

EPSS probability3.02%

CISA KEVKnown exploited vulnerability

Published2018-11-14

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Known Exploited Vulnerability

Microsoft Win32k Privilege Escalation Vulnerability

Vendor / product: Microsoft / Win32k

Description

An elevation of privilege vulnerability exists when Windows improperly handles calls to Win32k.sys, aka "Windows Win32k Elevation of Privilege Vulnerability." This affects Windows Server 2008, Windows 7, Windows Server 2008 R2.

Primary references

secure@microsoft.com — Broken Link, Third Party Advisory, VDB Entry
secure@microsoft.com — Broken Link, Third Party Advisory, VDB Entry
secure@microsoft.com — Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Broken Link, Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108 — Broken Link, Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108 — Patch, Vendor Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0 — US Government Resource