Live › vulnerability › CVE-2018-8639
Go to dashboardA flaw in the Windows Win32k kernel component lets a logged-in local user release resources improperly and gain privilege escalation. A successful attacker can run arbitrary code in kernel mode, and the sources report it is exploited in the wild, including by ransomware operators.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 19:11 UTC, 3h before NVD. All times on this page are UTC.
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
| Product | Ecosystem | Affected | Fixed in |
|---|---|---|---|
| Microsoft Windows | vendor | – | – |
| microsoft windows 10 1507 | vendor | – | – |
| microsoft windows 10 1607 | vendor | – | – |
| microsoft windows 10 1703 | vendor | – | – |
| microsoft windows 10 1709 | vendor | – | – |
| microsoft windows 10 1803 | vendor | – | – |
| microsoft windows 10 1809 | vendor | – | – |
| microsoft windows 7 | vendor | – | – |
| microsoft windows 8.1 | vendor | – | – |
| microsoft windows rt 8.1 | vendor | – | – |
| microsoft windows server 2008 | vendor | – | – |
| microsoft windows server 2008 | vendor | = r2 | – |
| microsoft windows server 2012 | vendor | – | – |
| microsoft windows server 2012 | vendor | = r2 | – |
| microsoft windows server 2016 | vendor | – | – |
| microsoft windows server 2019 | vendor | – | – |
Unknown from the sources.
Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
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 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2019, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers. This CVE ID is unique from CVE-2018-8641.
This page as .md · .json · in your agent: get_signal("CVE-2018-8639")
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