PT-2026-58407 · Microsoft · Windows Container Isolation Fs Filter Driver+1

CVE-2026-50428

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Published

2026-07-14

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Updated

2026-07-21

CVSS v3.1

7.1

High

VectorAV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Name of the Vulnerable Software and Affected Versions Windows Container Isolation FS Filter Driver (unionfs.sys) (affected versions not specified)
Description An out-of-bounds read in the Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to disclose sensitive information locally and affect the system. An out-of-bounds read occurs when the software reads data past the end of the intended buffer, potentially accessing adjacent memory locations.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Out of bounds Read

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Weakness Enumeration

Related Identifiers

CVE-2026-50428

Affected Products

Windows
Windows Container Isolation Fs Filter Driver