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Description

Access of resource using incompatible type ('type confusion') in Composite Image File System Driver allows an authorized attacker to disclose information locally.

PUBLISHED Reserved 2026-06-04 | Published 2026-07-14 | Updated 2026-07-14 | Assigner microsoft




MEDIUM: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C

Problem types

CWE-843: Access of Resource Using Incompatible Type ('Type Confusion')

Product status

10.0.19044.0 (custom) before 10.0.19044.7548
affected

10.0.19045.0 (custom) before 10.0.19045.7548
affected

10.0.26100.0 (custom) before 10.0.26100.8875
affected

10.0.26200.0 (custom) before 10.0.26200.8875
affected

10.0.28000.0 (custom) before 10.0.28000.2269
affected

10.0.20348.0 (custom) before 10.0.20348.5386
affected

10.0.26100.0 (custom) before 10.0.26100.33158
affected

10.0.26100.0 (custom) before 10.0.26100.33158
affected

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50381 (Composite Image File System driver (cimfs.sys) Information Disclosure Vulnerability) vendor-advisory patch

cve.org (CVE-2026-50381)

nvd.nist.gov (CVE-2026-50381)

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