CVE-2026-59137

Analyzed Analyzed - Analysis Complete

Use of Uninitialized Resource in Windows Event Logging Service Allows Local Information Disclosure

Publication date: 2026-08-11

Last updated on: 2026-08-16

Assigner: Microsoft Corporation

Description

Use of uninitialized resource in Windows Event Logging Service allows an authorized attacker to disclose information locally.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-08-11

Last Modified

2026-08-16

Generated

2026-09-01

AI Q&A

2026-08-12

EPSS Evaluated

2026-08-30

NVD

CVE-2026-59137

EUVD

EUVD-2026-56316

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	windows_server_2012	r2
microsoft	windows_server_2012	*
microsoft	windows_10_1607	to 10.0.14393.9418 (exc)
microsoft	windows_10_1607	to 10.0.14393.9418 (exc)
microsoft	windows_10_1809	to 10.0.17763.9115 (exc)
microsoft	windows_10_1809	to 10.0.17763.9115 (exc)
microsoft	windows_10_21h2	to 10.0.19044.7663 (exc)
microsoft	windows_10_21h2	to 10.0.19044.7663 (exc)
microsoft	windows_10_21h2	to 10.0.19044.7663 (exc)
microsoft	windows_10_22h2	to 10.0.19045.7663 (exc)
microsoft	windows_10_22h2	to 10.0.19045.7663 (exc)
microsoft	windows_10_22h2	to 10.0.19045.7663 (exc)
microsoft	windows_11_23h2	to 10.0.22631.7517 (exc)
microsoft	windows_11_23h2	to 10.0.22631.7517 (exc)
microsoft	windows_11_24h2	to 10.0.26100.9106 (exc)
microsoft	windows_11_24h2	to 10.0.26100.9106 (exc)
microsoft	windows_11_26h1	to 10.0.28000.2704 (exc)
microsoft	windows_11_26h1	to 10.0.28000.2704 (exc)
microsoft	windows_11_25h2	to 10.0.26200.9106 (exc)
microsoft	windows_11_25h2	to 10.0.26200.9106 (exc)
microsoft	windows_server_2016	to 10.0.14393.9418 (exc)
microsoft	windows_server_2019	to 10.0.17763.9115 (exc)
microsoft	windows_server_2022	to 10.0.20348.5440 (exc)
microsoft	windows_server_2025	to 10.0.26100.33222 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-908	The product uses or accesses a resource that has not been initialized.

Attack-Flow Graph

Executive Summary

This vulnerability involves the Windows Event Logging Service using an uninitialized resource. An authorized attacker can exploit this to disclose information locally on the affected system.

Detection Guidance

This vulnerability involves uninitialized resources in the Windows Event Logging Service. Detection requires checking for unusual event log entries or service behavior. Use Event Viewer (eventvwr.msc) to review logs for unexpected entries. Check Windows Event Logging Service status via services.msc or PowerShell command: Get-Service -Name EventLog. Monitor for crashes or errors in the Event Log service.

Impact Analysis

An attacker with local access could exploit this to read sensitive information from the system, potentially leading to data leaks or further attacks.

Compliance Impact

This vulnerability allows local information disclosure due to uninitialized resources in the Windows Event Logging Service. Such unauthorized access to sensitive data could potentially violate GDPR's data protection principles or HIPAA's confidentiality requirements if it involves personal or health information.

Mitigation Strategies

Apply the latest security updates from Microsoft to patch the Windows Event Logging Service. Monitor Microsoft's update guide for the official patch release.

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