CVE-2026-20940

🔴 HIGH

Heap-based buffer overflow in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.

Published
Jan 13, 2026
Last Modified
Jan 16, 2026
Views
4
Bookmarks
0

Heap-based buffer overflow in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.

Affected Products (20)

microsoft - windows_10_1607

Version: *

microsoft - windows_10_1607

Version: *

microsoft - windows_10_1809

Version: *

microsoft - windows_10_1809

Version: *

microsoft - windows_10_21h2

Version: *

microsoft - windows_10_21h2

Version: *

microsoft - windows_10_21h2

Version: *

microsoft - windows_10_22h2

Version: *

microsoft - windows_10_22h2

Version: *

microsoft - windows_10_22h2

Version: *

microsoft - windows_11_23h2

Version: *

microsoft - windows_11_23h2

Version: *

microsoft - windows_server_2008

Version: -

microsoft - windows_server_2008

Version: -

microsoft - windows_server_2008

Version: r2

microsoft - windows_server_2012

Version: -

microsoft - windows_server_2012

Version: r2

microsoft - windows_server_2016

Version: *

microsoft - windows_server_2019

Version: *

microsoft - windows_server_2022

Version: *

CVSS Scores

CVSS 3.1 7.8
7.8
HIGH
CVSS 2.0 7.8

Additional Information

Source
secure@microsoft.com
State
Analyzed

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