CVE-2021-34486
HighActively exploited (CISA KEV)
Description
Windows Event Tracing Elevation of Privilege Vulnerability
SeverityHigh
CVSS7.8
Exploit probability—
Product
Microsoft Windows
PublishedAug 12, 2021
First seenAug 12, 2021
Added to KEVMar 28, 2022
Weakness typeCWE-416Use after free
How to fix
CISA required action
Apply updates per vendor instructions.
CISA due date: Apr 18, 2022Update
- microsoft windows_10_180910.0.17763.2114 or later
- microsoft windows_10_190910.0.18363.1734 or later
- microsoft windows_10_200410.0.19041.1165 or later
- microsoft windows_10_20h210.0.19042.1165 or later
- microsoft windows_10_21h110.0.19043.1165 or later
- microsoft windows_server_200410.0.19041.1165 or later
- microsoft windows_server_201910.0.17763.2114 or later
- microsoft windows_server_20h210.0.19042.1165 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| microsoft windows_10_1809 | v < 10.0.17763.2114 | 10.0.17763.2114 |
| microsoft windows_10_1909 | v < 10.0.18363.1734 | 10.0.18363.1734 |
| microsoft windows_10_2004 | v < 10.0.19041.1165 | 10.0.19041.1165 |
| microsoft windows_10_20h2 | v < 10.0.19042.1165 | 10.0.19042.1165 |
| microsoft windows_10_21h1 | v < 10.0.19043.1165 | 10.0.19043.1165 |
| microsoft windows_server_2004 | v < 10.0.19041.1165 | 10.0.19041.1165 |
| microsoft windows_server_2019 | v < 10.0.17763.2114 | 10.0.17763.2114 |
| microsoft windows_server_20h2 | v < 10.0.19042.1165 | 10.0.19042.1165 |
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