What is CVE-2025-53729?

CVE-2025-53729 is a high-severity vulnerability in Microsoft Azure File Sync, classified under Improper Access Control. CVSS score: 7.8/10. Published 2025-08-12.

How severe is CVE-2025-53729?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Microsoft Azure File Sync

CVE-2025-53729

Improper access control in Azure File Sync allows an authorized attacker to elevate privileges locally.

EPSS: 0.003 (18.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Microsoft Azure File Sync — versions 1.0.0
Microsoft Azure_file_sync

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

secure@microsoft.com (vendor-advisory, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2025-53729?: CVE-2025-53729 is a high-severity vulnerability in Microsoft Azure File Sync, classified under Improper Access Control. CVSS score: 7.8/10. Published 2025-08-12.
How severe is CVE-2025-53729?: High severity. CVSS v3 base score is 7.8 out of 10.