CVE-2026-72971

29th percentile - higher than 29% of all known CVEs

Improper link resolution before file access ('link following') in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to perform tampering locally.

An attacker with local privileges can modify files in a way that compromises integrity, potentially leading to privilege escalation or container isolation breach.

Apply relevant Windows updates that fix this issue and monitor vendor recommendations.