CVE-2025-29973highCWE-284

CVE-2025-29973: high-severity vulnerability in Microsoft Azure File Sync

Microsoft Azure File Sync Elevation of Privilege Vulnerability

Published · Updated

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7epss 0.3%
exploitation probability
0.3%top 79% of all CVEs
observed exploitation
nono source reports it
Improper access control in Azure File Sync allows an authorized attacker to elevate privileges locally.
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Affected products
Microsoft · Azure File Sync
Related CVEs — Microsoft Azure File Sync

In the same product, most dangerous first.

CVE-2024-35253MEDIUMMicrosoft Azure File Sync Elevation of Privilege VulnerabilityEPSS 0.7%CVE-2024-21397MEDIUMMicrosoft Azure File Sync Elevation of Privilege VulnerabilityEPSS 0.5%CVE-2025-53729HIGHMicrosoft Azure File Sync Elevation of Privilege VulnerabilityEPSS 0.3%
References
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-29973