PT-2021-3281

CVE-2021-31969

Published

2021-06-08

Updated

2026-05-13

Description by

CVSS 3.1

7.8

High

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

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

Description The vulnerability is related to errors in privilege management in the Windows Cloud Files Mini Filter Driver. It allows an attacker to elevate their privileges. The issue is associated with an integer underflow in the Windows Cloud Filter API and a kernel pool overflow from a restrictive chunk size.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Impacts

Researchers

Keqi Hu

Vendors

Affected products

Weakness enumeration

CWE-269: Improper Privilege Management

CWE-264

Related identifiers

CVE-2021-31969

BDU:2021-03052