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MEDIUM · 5.5

CVE-2026-50381

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

Vulnerability Description

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

CVSS Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE

Affected Products

VendorProductVersions
MicrosoftWindows 10 21H2< 10.0.19044.7548
MicrosoftWindows 10 22H2< 10.0.19045.7548
MicrosoftWindows 11 24H2< 10.0.26100.8875
MicrosoftWindows 11 25H2< 10.0.26200.8875
MicrosoftWindows 11 26H1< 10.0.28000.2269
MicrosoftWindows Server 2022< 10.0.20348.5386
MicrosoftWindows Server 2025< 10.0.26100.33158

Related Weaknesses (CWE)

CWE-843

References

FAQ

What is CVE-2026-50381?

CVE-2026-50381 is a vulnerability with a CVSS score of 5.5 (MEDIUM). Access of resource using incompatible type ('type confusion') in Composite Image File System Driver allows an authorized attacker to disclose information locally.

How severe is CVE-2026-50381?

CVE-2026-50381 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-50381?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Windows 10 21H2, Microsoft Windows 10 22H2, Microsoft Windows 11 24H2, Microsoft Windows 11 25H2, Microsoft Windows 11 26H1.