CVE WatchAug 11, 2026

CVE-2026-72971

Improper link resolution before file access ('link following') in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an autho

CVSS

5.5

Medium

EPSS

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KEV

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Exploit Today

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0-100

Published: Aug 11, 2026 · Last modified: Aug 11, 2026 · CWE-59

EPSS · 30d

Not enough EPSS history yet.

Technical description

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.

Official references

msrc.microsoft.comhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-72971

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