Vulnerability in Microsoft Azure File Sync
CVE-2025-29973
Improper access control in Azure File Sync allows an authorized attacker to elevate privileges locally.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (20.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 20th percentile — 20.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Microsoft Azure File Sync — versions 1.0.0
- Microsoft Azure File Sync — versions 19.0.0.0, 20.0.0.0
Weakness classification (CWE)
References
- msrc.microsoft.com/update-guide/vulnerability/CVE-2025-29973 (vendor-advisory, patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2025-29973?
- CVE-2025-29973 is a high-severity vulnerability in Microsoft Azure File Sync, classified under Improper Access Control. CVSS score: 7.0/10. Published 2025-05-13.
- How severe is CVE-2025-29973?
- High severity. CVSS v3 base score is 7.0 out of 10.