CVE-2021-34486

Windows Event Tracing Elevation of Privilege Vulnerability

CVE-2021-34486 is fixed in 19 products on 1 platform, first by KB5005030, released August 10, 2021. It is being exploited: CISA added it to the Known Exploited Vulnerabilities catalog on March 28, 2022. Patch Radar priority: Patch now.

Patch nowCISA KEV

CVSS

7.8

Important

Exploitation

Exploited

Listed by CISA

CISA KEV

Mar 28, 2022

Federal due date Apr 18, 2022

EPSS

0.0933

95th percentile

Where it's fixed

Product	Fixed in	Fix	Released
Microsoft
Windows 10 Version 1809 for 32-bit Systems	17763.2114	KB5005030	Aug 10, 2021
Windows 10 Version 1809 for ARM64-based Systems	17763.2114	KB5005030	Aug 10, 2021
Windows 10 Version 1809 for x64-based Systems	17763.2114	KB5005030	Aug 10, 2021
Windows 10 Version 1909 for 32-bit Systems	18363.1734	KB5005031	Aug 10, 2021
Windows 10 Version 1909 for ARM64-based Systems	18363.1734	KB5005031	Aug 10, 2021
Windows 10 Version 1909 for x64-based Systems	18363.1734	KB5005031	Aug 10, 2021
Windows 10 Version 2004 for 32-bit Systems		KB5005033	Aug 10, 2021
Windows 10 Version 2004 for ARM64-based Systems		KB5005033	Aug 10, 2021
Windows 10 Version 2004 for x64-based Systems		KB5005033	Aug 10, 2021
Windows 10 Version 20H2 for 32-bit Systems		KB5005033	Aug 10, 2021
Windows 10 Version 20H2 for ARM64-based Systems		KB5005033	Aug 10, 2021
Windows 10 Version 20H2 for x64-based Systems		KB5005033	Aug 10, 2021
Windows 10 Version 21H1 for 32-bit Systems		KB5005033	Aug 10, 2021
Windows 10 Version 21H1 for ARM64-based Systems		KB5005033	Aug 10, 2021
Windows 10 Version 21H1 for x64-based Systems		KB5005033	Aug 10, 2021
Windows Server 2019	17763.2114	KB5005030	Aug 10, 2021
Windows Server 2019 (Server Core installation)	17763.2114	KB5005030	Aug 10, 2021
Windows Server, version 2004 (Server Core installation)		KB5005033	Aug 10, 2021
Windows Server, version 20H2 (Server Core Installation)		KB5005033	Aug 10, 2021

Details

Published
August 10, 2021
CISA required action
Apply updates per vendor instructions.
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34486

For tools and AI agents

This page as data: JSON · Markdown

Link to this page

If this page saved you time, a link to it in your ticket, advisory or write-up helps others find it.

HTML

<a href="https://patchblox.com/security/cve/CVE-2021-34486">CVE-2021-34486 on Patchblox Patch Radar</a>

Reusing the data? How to credit Patch Radar.

Is this on your machines?

Patchblox finds every install below the fixed version on Windows, macOS and Linux, and updates them through your release rings.

Get a demo

Patch Radar data is free to use with attribution. Terms and how to credit it.

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.