CVE-2026-50428

Out-of-bounds read in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to disclose information locally.

CVSS v3 7.1 HIGH

7.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50428	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:microsoft:windows_11_26h1:::::::x64:*
	cpe:2.3:o:microsoft:windows_11_26h1:::::::arm64:*

History

21 Jul 2026, 03:57

Type	Values Removed	Values Added
References	~~() https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50428 -~~	() https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50428 - Patch, Vendor Advisory
First Time		Microsoft Microsoft windows 11 26h1
CPE		cpe:2.3:o:microsoft:windows_11_26h1:::::::arm64:* cpe:2.3:o:microsoft:windows_11_26h1:::::::x64:*

14 Jul 2026, 18:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-14 18:17

Updated : 2026-07-22 16:17

NVD link : CVE-2026-50428

Mitre link : CVE-2026-50428

CVE.ORG link : CVE-2026-50428

JSON object : View

Products Affected

microsoft

windows_11_26h1

CWE

CWE-125

Out-of-bounds Read

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