CVE-2026-69572

Analyzed Analyzed - Analysis Complete

Out-of-bounds Read in Windows SMB Client

Publication date: 2026-09-08

Last updated on: 2026-09-24

Assigner: Microsoft Corporation

Description

Out-of-bounds read in Windows SMB Client allows an authorized attacker to disclose information over a network.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-09-08

Last Modified

2026-09-24

Generated

2026-09-29

AI Q&A

2026-09-10

EPSS Evaluated

2026-09-27

NVD

CVE-2026-69572

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	smb_client	*

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 issue in the Windows SMB Client. It allows an authorized attacker to read memory outside the intended bounds over a network, potentially disclosing sensitive information.

Impact Analysis

An attacker could exploit this to access unauthorized data on your system through the network. This may lead to information disclosure, but does not allow code execution or system takeover.

Compliance Impact

This vulnerability could lead to unauthorized data disclosure, which may violate GDPR or HIPAA requirements for data protection and confidentiality. Organizations must address it to maintain compliance.

Mitigation Strategies

Apply the latest security updates from Microsoft to patch the Windows SMB Client vulnerability. Ensure network segmentation and restrict unauthorized access to SMB services.

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