CVE-2026-69550

Modified Modified - Updated After Analysis

Out-of-bounds Read in Remote Desktop Client

Publication date: 2026-08-19

Last updated on: 2026-08-27

Assigner: Microsoft Corporation

Description

Out-of-bounds read in Remote Desktop Client allows an unauthorized attacker to disclose information over a network.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-08-19

Last Modified

2026-08-27

Generated

2026-09-09

AI Q&A

2026-08-20

EPSS Evaluated

2026-09-07

NVD

CVE-2026-69550

EUVD

EUVD-2026-63100

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	windows_app	to 11.3.9 (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.
CWE-126	The product reads from a buffer using buffer access mechanisms such as indexes or pointers that reference memory locations after the targeted buffer.

Attack-Flow Graph

Executive Summary

This vulnerability is an out-of-bounds read issue in the Microsoft Remote Desktop Client. It allows an unauthorized attacker to read memory outside the intended buffer, potentially exposing sensitive information transmitted over a network.

Detection Guidance

This vulnerability is an out-of-bounds read in the Remote Desktop Client. Detection typically requires monitoring for unusual network traffic or crashes in the Remote Desktop application. Check for updates from Microsoft to patch the issue. Use network monitoring tools like Wireshark to inspect RDP traffic for anomalies.

Impact Analysis

An attacker could exploit this to disclose confidential data, such as credentials or sensitive files, if you use the Remote Desktop Client to connect to a compromised or malicious server.

Compliance Impact

This vulnerability could lead to unauthorized data exposure, violating GDPR (data protection) and HIPAA (health information privacy) by allowing access to sensitive personal or medical data.

Mitigation Strategies

Apply the latest security updates from Microsoft for the Remote Desktop Client to patch the out-of-bounds read vulnerability. Disable Remote Desktop if not required and restrict access via firewalls or network policies.

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