7.8

CVE-2021-34486

Warning

Windows Event Tracing Elevation of Privilege Vulnerability

Data is provided by the National Vulnerability Database (NVD)
Microsoft ≫ Windows 10 1809 Version < 10.0.17763.2114
Microsoft ≫ Windows 10 1909 Version < 10.0.18363.1734
Microsoft ≫ Windows 10 2004 Version < 10.0.19041.1165
Microsoft ≫ Windows 10 20h2 Version < 10.0.19042.1165
Microsoft ≫ Windows 10 21h1 Version < 10.0.19043.1165
Microsoft ≫ Windows Server 2004 Version < 10.0.19041.1165
Microsoft ≫ Windows Server 2019 Version < 10.0.17763.2114
Microsoft ≫ Windows Server 20h2 Version < 10.0.19042.1165

28.03.2022: CISA Known Exploited Vulnerabilities (KEV) Catalog

Microsoft Windows Event Tracing Privilege Escalation Vulnerability

Vulnerability

Microsoft Windows Event Tracing contains an unspecified vulnerability which can allow for privilege escalation.

Description

Apply updates per vendor instructions.

Required actions
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 38.77% 0.972
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 4.6 3.9 6.4
AV:L/AC:L/Au:N/C:P/I:P/A:P
nvd@nist.gov 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
secure@microsoft.com 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.