CVE-2026-84007

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Out-of-Bounds Read in Remote Desktop Gateway Service

Publication date: 2026-10-13

Last updated on: 2026-10-13

Assigner: Microsoft Corporation

Description

Out-of-bounds read in Remote Desktop Gateway Service allows an authorized attacker to disclose information over a network.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-10-13

Last Modified

2026-10-13

Generated

2026-10-19

AI Q&A

2026-10-14

EPSS Evaluated

2026-10-18

NVD

CVE-2026-84007

EUVD

EUVD-2026-99447

Affected Vendors & Products

Vendor	Product	Version / Range
Microsoft	Windows	Server 2012 6.2.9200.0
Microsoft	Windows	Server 2012 (Server Core installation) 6.2.9200.0
Microsoft	Windows	Server 2012 R2 6.3.9600.0
Microsoft	Windows	Server 2012 R2 (Server Core installation) 6.3.9600.0
Microsoft	Windows	Server 2016 10.0.14393.0
Microsoft	Windows	Server 2016 (Server Core installation) 10.0.14393.0
Microsoft	Windows	Server 2019 10.0.17763.0
Microsoft	Windows	Server 2019 (Server Core installation) 10.0.17763.0
Microsoft	Windows	Server 2022 10.0.20348.0
Microsoft	Windows	Server 2025 10.0.26100.0
Microsoft	Windows	Server 2025 (Server Core installation) 10.0.26100.0

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 flaw in the Remote Desktop Gateway Service. It allows an authorized attacker to read memory outside the intended boundaries, potentially exposing sensitive information over a network.

Impact Analysis

An attacker could exploit this to access confidential data, such as user credentials or system configurations, if they have network access and proper authorization. This could lead to further attacks or data breaches.

Compliance Impact

This vulnerability allows unauthorized disclosure of information, which could lead to unauthorized access to sensitive data. For GDPR, this may result in violations of data confidentiality requirements. For HIPAA, it could compromise protected health information integrity and confidentiality.

Mitigation Strategies

Apply the latest security updates from Microsoft for the Remote Desktop Gateway Service as soon as possible to patch the out-of-bounds read vulnerability.

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