CVE-2026-50381 MEDIUM

CVE-2026-50381: Composite Image File System driver (cimfs.sys) Information Disclosure Vulnerability

Vendor Microsoft
Product Windows 10 Version 21H2
Weakness CWE-843
Published July 14, 2026
Last update July 24, 2026
View on NVD All CVEs

CVSS base score

5.5/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity None

CVSS vector

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

What the vulnerability does

01Description

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

Key dates

02Disclosure timeline

July 14, 2026 CVE published
July 24, 2026 Record updated