CVE-2026-69721

Analyzed Analyzed - Analysis Complete

Out-of-Bounds Read in Windows iSCSI

Publication date: 2026-10-13

Last updated on: 2026-11-02

Assigner: Microsoft Corporation

Description

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

CVSS Scores

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Meta Information

Published

2026-10-13

Last Modified

2026-11-02

Generated

2026-11-08

AI Q&A

2026-10-14

EPSS Evaluated

2026-11-07

NVD

CVE-2026-69721

EUVD

EUVD-2026-99275

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_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_server_2022	to 10.0.20348.5761 (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-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 the Windows iSCSI component. It allows an authorized attacker with local access to read beyond the intended memory boundaries, potentially exposing sensitive information stored in memory.

Detection Guidance

This vulnerability is an out-of-bounds read in Windows iSCSI that allows local information disclosure. Detection primarily involves checking for affected Windows versions and applying Microsoft security updates. Use Windows Update or run 'systeminfo | findstr /B /C:"OS Name" /C:"OS Version"' to verify your system version. Monitor Microsoft's update guide for patches.

Impact Analysis

An attacker could exploit this to access confidential 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 an authorized attacker to disclose information locally through an out-of-bounds read in Windows iSCSI. This could lead to unauthorized access to sensitive data, which may violate compliance requirements under GDPR and HIPAA if personal or health information is exposed.

Mitigation Strategies

Apply the latest security updates from Microsoft to patch the out-of-bounds read vulnerability in Windows iSCSI. Monitor Microsoft's update guide for the specific patch release.

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