CVE-2026-95904

Analyzed Analyzed - Analysis Complete

Buffer Over-Read in Windows Event Logging Service

Publication date: 2026-10-13

Last updated on: 2026-10-16

Assigner: Microsoft Corporation

Description

Buffer over-read 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

2026-10-13

Last Modified

2026-10-16

Generated

2026-10-19

AI Q&A

2026-10-14

EPSS Evaluated

2026-10-18

NVD

CVE-2026-95904

EUVD

EUVD-2026-99796

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	windows_server_2012	r2
microsoft	windows_server_2012	*
microsoft	windows_server_2022	to 10.0.20348.5761 (exc)
microsoft	windows_10_1607	to 10.0.14393.9612 (exc)
microsoft	windows_10_1607	to 10.0.14393.9612 (exc)
microsoft	windows_10_1809	to 10.0.17763.9376 (exc)
microsoft	windows_10_1809	to 10.0.17763.9376 (exc)
microsoft	windows_10_21h2	to 10.0.19044.7807 (exc)
microsoft	windows_10_21h2	to 10.0.19044.7807 (exc)
microsoft	windows_10_21h2	to 10.0.19044.7807 (exc)
microsoft	windows_11_23h2	to 10.0.22631.7652 (exc)
microsoft	windows_11_23h2	to 10.0.22631.7652 (exc)
microsoft	windows_11_24h2	to 10.0.26100.9711 (exc)
microsoft	windows_11_24h2	to 10.0.26100.9711 (exc)
microsoft	windows_11_25h2	to 10.0.26200.9711 (exc)
microsoft	windows_11_25h2	to 10.0.26200.9711 (exc)
microsoft	windows_11_26h1	to 10.0.28000.3231 (exc)
microsoft	windows_11_26h1	to 10.0.28000.3231 (exc)
microsoft	windows_11_26h2	to 10.0.26300.9711 (exc)
microsoft	windows_11_26h2	to 10.0.26300.9711 (exc)
microsoft	windows_server_2016	to 10.0.14393.9612 (exc)
microsoft	windows_server_2019	to 10.0.17763.9376 (exc)
microsoft	windows_server_2025	to 10.0.26100.33650 (exc)
microsoft	windows_10_22h2	to 10.0.19045.7807 (exc)
microsoft	windows_10_22h2	to 10.0.19045.7807 (exc)
microsoft	windows_10_22h2	to 10.0.19045.7807 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-126	The product reads from a buffer using buffer access mechanisms such as indexes or pointers that reference memory locations after the targeted buffer.

Attack-Flow Graph

Executive Summary

This is a buffer over-read vulnerability in the Windows Event Logging Service. It allows an authorized attacker with local access to read beyond the intended memory buffer, potentially exposing sensitive information stored in memory.

Detection Guidance

This vulnerability involves a buffer over-read in the Windows Event Logging Service, which may allow local information disclosure. Detection typically requires monitoring for unusual event log access patterns or errors in Windows Event Viewer logs. Use Event Viewer (eventvwr.msc) to review Security and System logs for anomalies. Check for excessive or unexpected event log reads by processes.

Impact Analysis

An attacker could exploit this to access sensitive data on your system, such as passwords or encryption keys, if they already have local access. This could lead to further compromise of your system or data.

Compliance Impact

This vulnerability allows local information disclosure due to a buffer over-read in the Windows Event Logging Service. Such unauthorized access to sensitive data could potentially violate compliance requirements under GDPR (General Data Protection Regulation) and HIPAA (Health Insurance Portability and Accountability Act) by exposing personal or protected health information.

Mitigation Strategies

Apply the latest security updates from Microsoft to patch the Windows Event Logging Service vulnerability. Monitor Microsoft's update guide for patches specific to affected Windows versions.

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