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Description

Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.

PUBLISHED Reserved 2026-03-24 | Published 2026-05-12 | Updated 2026-05-20 | Assigner microsoft




HIGH: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Problem types

CWE-416: Use After Free

Product status

10.0.17763.0 (custom) before 10.0.17763.8755
affected

10.0.19044.0 (custom) before 10.0.19044.7291
affected

10.0.19045.0 (custom) before 10.0.19045.7291
affected

10.0.22631.0 (custom) before 10.0.22631.7079
affected

10.0.22631.0 (custom) before 10.0.22631.7079
affected

10.0.26100.0 (custom) before 10.0.26100.8457
affected

10.0.26200.0 (custom) before 10.0.26200.8457
affected

10.0.28000.0 (custom) before 10.0.28000.2113
affected

10.0.17763.0 (custom) before 10.0.17763.8755
affected

10.0.17763.0 (custom) before 10.0.17763.8755
affected

10.0.20348.0 (custom) before 10.0.20348.5139
affected

10.0.25398.0 (custom) before 10.0.25398.2330
affected

10.0.26100.0 (custom) before 10.0.26100.32860
affected

10.0.26100.0 (custom) before 10.0.26100.32860
affected

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33835 (Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability) vendor-advisory patch

cve.org (CVE-2026-33835)

nvd.nist.gov (CVE-2026-33835)

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