Windows DNS Out-of-Bounds Read Vulnerability

Publication date: 2026-09-08

Last updated on: 2026-09-24

Assigner: Microsoft Corporation

Description

Out-of-bounds read in Windows DNS allows an authorized attacker to disclose information locally.

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-2026-69369

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	windows_dns	*

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 DNS. An authorized attacker with local access can exploit it to disclose information from memory locations outside the intended buffer.

Impact Analysis

An attacker could exploit this to read sensitive data from your system, potentially including passwords or other confidential information. The impact is limited to local access and requires prior authorization.

Mitigation Strategies

Apply the latest Windows security updates from Microsoft to patch the DNS vulnerability. Monitor Microsoft's security advisories for patches and install them promptly.

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