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7.8

Windows Container Isolation Driver Privilege Escalation

CVE-2026-33098
Summary

An attacker can exploit a flaw in the Windows Container Isolation driver to gain elevated privileges on a system, potentially allowing them to access sensitive data or take control of the system. This affects systems running Windows containers. To address this, users should ensure they have the latest updates installed and follow recommended security best practices for container management.

Original title
Use after free in Windows Container Isolation FS Filter Driver allows an authorized attacker to elevate privileges locally.
Original description
Use after free in Windows Container Isolation FS Filter Driver allows an authorized attacker to elevate privileges locally.
nvd CVSS3.1 7.8
Vulnerability type
CWE-416 Use After Free
Published: 14 Apr 2026 · Updated: 14 Apr 2026 · First seen: 14 Apr 2026