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Description

Improper access control in Windows Resilient File System (ReFS) allows an authorized attacker to disclose information over a network.

PUBLISHED Reserved 2025-03-06 | Published 2025-04-08 | Updated 2026-02-13 | Assigner microsoft




MEDIUM: 6.5CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C

Problem types

CWE-284: Improper Access Control

Product status

10.0.10240.0 (custom) before 10.0.10240.20978
affected

10.0.14393.0 (custom) before 10.0.14393.7969
affected

10.0.17763.0 (custom) before 10.0.17763.7136
affected

10.0.19044.0 (custom) before 10.0.19044.5737
affected

10.0.19045.0 (custom) before 10.0.19045.5737
affected

10.0.22621.0 (custom) before 10.0.22621.5189
affected

10.0.22631.0 (custom) before 10.0.22631.5189
affected

10.0.22631.0 (custom) before 10.0.22631.5189
affected

10.0.26100.0 (custom) before 10.0.26100.3775
affected

6.2.9200.0 (custom) before 6.2.9200.25423
affected

6.2.9200.0 (custom) before 6.2.9200.25423
affected

6.3.9600.0 (custom) before 6.3.9600.22523
affected

6.3.9600.0 (custom) before 6.3.9600.22523
affected

10.0.14393.0 (custom) before 10.0.14393.7969
affected

10.0.14393.0 (custom) before 10.0.14393.7969
affected

10.0.17763.0 (custom) before 10.0.17763.7136
affected

10.0.17763.0 (custom) before 10.0.17763.7136
affected

10.0.20348.0 (custom) before 10.0.20348.3453
affected

10.0.25398.0 (custom) before 10.0.25398.1551
affected

10.0.26100.0 (custom) before 10.0.26100.3775
affected

10.0.26100.0 (custom) before 10.0.26100.3775
affected

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2025-27738 (Windows Resilient File System (ReFS) Information Disclosure Vulnerability) vendor-advisory patch

cve.org (CVE-2025-27738)

nvd.nist.gov (CVE-2025-27738)

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