CyberSecurityBoardThreat Intel · CVEs · Products
Critical CVEs

CVE-2026-72971: Windows Container Isolation FS Filter Driver Tampering Vulnerability

August 12, 2026

CVE-2026-72971 is a publicly disclosed tampering vulnerability in the Windows Container Isolation FS Filter Driver (unionfs.sys). It has a CVSS score of 5.5 and was patched by Microsoft in August 2026.