CVE-2026-50376 Details
Description
Use of uninitialized resource in Windows RDP allows an unauthorized attacker to disclose information over a network.
A vulnerability in the Windows Remote Desktop Protocol (RDP) client allows unauthorized attackers to disclose information over a network. This issue arises from the use of uninitialized resources, which can lead to the exposure of uninitialized heap memory.
Users can apply the security update provided by Microsoft to address this vulnerability. This security update is available through the Microsoft Update Catalog. Specific update details can be found in the Microsoft Knowledge Base articles KB5099539 for various Windows 10 versions, KB5099540 for Windows Server 2022, KB5099538 for Windows Server 2019 and 2019 (Server Core installation), KB5099444 for Windows Server 2012 R2 and 2012 (Server Core installation), KB5099535 for Windows Server 2016 and 2016 (Server Core installation), KB5095051 for Windows 11 Version 26H1 for x64-based and ARM64-based Systems, KB5101650 for Windows 11 Versions 24H2 for x64-based and ARM64-based Systems, and KB5101650 for Windows 11 Versions 25H2 for x64-based and ARM64-based Systems.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jul 15, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50376 | [email protected] | PatchVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-908 | Use of Uninitialized Resource | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| microsoft windows 10 1607 | < 10.0.14393.9339 |
CPE
Remediation
| |
| microsoft windows 10 1809 | < 10.0.17763.9020 |
CPE
Remediation
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| microsoft windows 10 21h2 | < 10.0.19044.7548 |
CPE
Remediation
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| microsoft windows 10 22h2 | < 10.0.19045.7548 |
CPE
Remediation
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| microsoft windows 11 24h2 | < 10.0.26100.8875 |
CPE
Remediation
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| microsoft windows 11 25h2 | < 10.0.26200.8875 |
CPE
Remediation
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| microsoft windows 11 26h1 | < 10.0.28000.2269 < 10.0.28000.2525 |
CPE
Remediation
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| microsoft windows server 2012 | r2 |
CPE
Remediation
| |
| microsoft windows server 2016 | < 10.0.14393.9339 |
CPE
Remediation
| |
| microsoft windows server 2019 | < 10.0.17763.9020 |
CPE
Remediation
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| microsoft windows server 2022 | < 10.0.20348.5386 |
CPE
Remediation
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| microsoft windows server 2025 | < 10.0.26100.33158 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 22, 2026 | CVE Modified | [email protected] |
| Jul 20, 2026 | Initial Analysis | [email protected] |
| Jul 15, 2026 | CVE Modified | CISA-ADP |
| Jul 14, 2026 | New CVE Received | [email protected] |