CVE-2026-70074

Analyzed Analyzed - Analysis Complete

Out-of-Bounds Read in Windows DNS Server

Publication date: 2026-10-13

Last updated on: 2026-10-16

Assigner: Microsoft Corporation

Description

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

CVSS Scores

EPSS Scores

Probability:
Percentile:

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-2026-70074

EUVD

EUVD-2026-99865

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	windows_server_2012	r2
microsoft	windows_server_2012	*
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_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_server_2022	to 10.0.20348.5761 (exc)

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 vulnerability is an out-of-bounds read in Windows DNS that allows an authorized attacker to disclose information locally. It occurs when the system reads data outside the intended memory bounds, potentially exposing sensitive information.

Impact Analysis

An attacker could exploit this to access sensitive data on your system, such as user credentials or configuration details. Since it requires local authorization, it primarily affects systems with multiple users or shared access.

Compliance Impact

This vulnerability allows local information disclosure through an out-of-bounds read in Windows DNS. Such unauthorized access to sensitive data could potentially violate compliance requirements under GDPR and HIPAA by exposing personal or protected health information.

Mitigation Strategies

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

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