CVE-2021-34486
KEVMicrosoft Windows Event Tracing Privilege Escalation Vulnerability
Description
Microsoft Windows Event Tracing contains an unspecified vulnerability which can allow for privilege escalation.
Windows Event Tracing Elevation of Privilege Vulnerability
CVSS 3.1 vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HPublishedAug 12, 2021
Last modifiedAug 10, 2026
Added to KEVMar 28, 2022
Remediation dueApr 18, 2022
References
- msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34486PatchVendor Advisory
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34486PatchVendor Advisory
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-34486US Government Resource
0 recent articles mention this CVE
70
Risk assessment · High
Actively exploited. Patch immediately.
- Exploitation
- Confirmed in the wild (CISA KEV)
- Federal remediation deadline
- Overdue by 1653 days
- CVSS
- 7.8 HIGH
- EPSS (30-day exploit probability)
- 9.3% · top 5% of all CVEs
- Weakness
- CWE-416
Recommended actions
- 1.Apply updates per vendor instructions.
- 2.Treat as emergency change: patch or isolate internet-facing instances first.
- 3.Hunt for compromise: review logs for the disclosure window, not just from the patch date.
Assessment is derived automatically from the live signals above; verify against your own asset inventory.