Out-of-Bounds Read in Windows LDAP Service

Publication date: 2026-09-08

Last updated on: 2026-09-24

Assigner: Microsoft Corporation

Description

Out-of-bounds read in Windows LDAP - Lightweight Directory Access Protocol allows an unauthorized attacker to deny service over a network.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-09-08

Last Modified

2026-09-24

Generated

2026-09-29

AI Q&A

2026-09-09

EPSS Evaluated

2026-09-27

NVD

CVE-2026-69428

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	windows_ldap	*

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-125	The product reads data past the end, or before the beginning, of the intended buffer.

Attack-Flow Graph

Executive Summary

This is an out-of-bounds read vulnerability in Windows LDAP. It allows an unauthorized attacker to cause a denial of service over a network by exploiting improper memory access in the LDAP protocol implementation.

Impact Analysis

The vulnerability can disrupt LDAP services, leading to service unavailability. This may affect authentication, directory lookups, and other network services relying on LDAP in Windows environments.

Mitigation Strategies

Apply the latest security updates from Microsoft for Windows LDAP to patch the out-of-bounds read vulnerability. Monitor network traffic for unusual LDAP service disruptions and restrict unauthorized access to LDAP ports.

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