PT-2026-58380 · Microsoft · Windows Cloud Files Mini Filter Driver+1

CVE-2026-50401 · Published 2026-07-14 · Updated 2026-07-15

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions Windows Cloud Files Mini Filter Driver (affected versions not specified)

Description An out-of-bounds read in the Windows Cloud Files Mini Filter Driver allows an authorized attacker to disclose information locally. An out-of-bounds read occurs when a program reads data past the end of the intended buffer, potentially exposing sensitive memory contents.

Recommendations Apply the July cumulative update.

Fix

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2026-50401

Affected Products

Windows

Windows Cloud Files Mini Filter Driver

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2026-50401 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-50401 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2026-50401 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50401 · Vendor Advisory
• https://twitter.com/windowsforum/status/2077301181706125703 · Twitter Post