Windows Event Tracing Elevation of Privilege Vulnerability
Published 2021-08-12 18:15:09
Updated 2023-12-28 20:15:49
View at NVD,   CVE.org
Vulnerability category: Gain privilege

CVE-2021-34486 is in the CISA Known Exploited Vulnerabilities Catalog

CISA vulnerability name:
Microsoft Windows Event Tracing Privilege Escalation Vulnerability
CISA required action:
Apply updates per vendor instructions.
CISA description:
Microsoft Windows Event Tracing contains an unspecified vulnerability which can allow for privilege escalation.
Added on 2022-03-28 Action due date 2022-04-18

Exploit prediction scoring system (EPSS) score for CVE-2021-34486

2.78%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 91 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-34486

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
4.6
MEDIUM AV:L/AC:L/Au:N/C:P/I:P/A:P
3.9
6.4
NIST
7.8
HIGH CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
1.8
5.9
NIST
7.8
HIGH CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
1.8
5.9
Microsoft Corporation

CWE ids for CVE-2021-34486

  • The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.
    Assigned by: nvd@nist.gov (Primary)
  • Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-34486

Products affected by CVE-2021-34486

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