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CVE-2023-21753: Event Tracing for Windows Information Disclosure Vulnerability

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-01-10 · updated 2026-06-17
• Weakness: CWE-908

Description

Event Tracing for Windows Information Disclosure Vulnerability

Affected products

• Microsoft Windows 10 Version 1607: 1809
• Microsoft Windows Server 2019: all versions
• Microsoft Windows 10: from 10.0.17763.0 before 10.0.17763.3887 — fixed in 10.0.17763.3887
• Microsoft Windows Server 2019: from 10.0.17763.0 before 10.0.17763.3887 — fixed in 10.0.17763.3887

How to fix

Upgrade to a fixed version: Microsoft Windows 10 10.0.17763.3887; Microsoft Windows Server 2019 10.0.17763.3887. Check the vendor advisory for mitigations.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21753
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21753

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