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Vulnerability record

CVE-2026-72971

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Full record read. Reported values and explicit gaps below come from the tracked record. Tracker data as of: .

What it is

Reported

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. Source description excerpt; complete tracked detail loads below.

Source reported · Source: NVD · Source last published: · Source last updated: · Tracker data as of:

What is affected

Reported

Microsoft — Windows 11 version 26H1 for x64-based Systems. Product-level identification only; no affected-version conclusion is available from this field.

Source reported · Source: NVD · Source last published: · Source last updated: · Tracker data as of:

Urgency and basis

Reported

Track · 109.0

Tracker computed · Tracker decision tier from the evidence detailed below · Source last updated: · Tracker data as of:

Exploitation evidence

Not reported

Not reported by tracked sources.

What to do

Reported

A source remediation link is available. Validate that guidance against the affected product and your environment.

Source remediation ↗

Source reported · Tracked source remediation field · Source last updated: · Tracker data as of:

Evidence detail

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