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.
Published: 2026-08-11
Score: 5.5 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Advisories

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History

Tue, 11 Aug 2026 17:15:00 +0000

Type Values Removed Values Added
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.
Title Windows Container Isolation FS Filter Driver (unionfs.sys) Tampering Vulnerability
First Time appeared Microsoft
Microsoft windows 11 26h1
Weaknesses CWE-59
CPEs cpe:2.3:o:microsoft:windows_11_26H1:*:*:*:*:*:*:x64:*
Vendors & Products Microsoft
Microsoft windows 11 26h1
References
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C'}


Subscriptions

Microsoft Windows 11 26h1
cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-08-11T19:20:34.118Z

Reserved: 2026-08-10T18:36:42.030Z

Link: CVE-2026-72971

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-08-11T17:19:15.220

Modified: 2026-08-11T18:53:42.910

Link: CVE-2026-72971

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses