Information Disclosure Vulnerability in Microsoft Windows RDP
CVE-2026-45639

7.5HIGH

Key Information:

Vendor

Microsoft
Status
Remote Desktop Client For Windows Desktop
Windows 10 Version 1607
Windows 10 Version 1809
Windows 10 Version 21h2
Vendor
CVE Published:
9 June 2026

What is CVE-2026-45639?

An out-of-bounds read vulnerability in Microsoft Windows Remote Desktop Protocol (RDP) could allow unauthorized attackers to access sensitive information over a network. This security flaw may enable attackers to exploit the vulnerability to disclose data that should remain secured, leading to potential risk for affected systems. It is crucial for organizations to apply available patches promptly to mitigate potential data breaches and ensure the integrity of their network communications.

Affected Version(s)

Remote Desktop client for Windows Desktop 1.2.0.0 < 1.2.7214.0

Windows 10 Version 1607 32-bit Systems 10.0.14393.0 < 10.0.14393.9234

Windows 10 Version 1809 32-bit Systems 10.0.17763.0 < 10.0.17763.8880

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisorypatch

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.