CVE-2025-53729

HIGHCVSS 7.8/10EPSS 0.27%

Last modified

CVE-2025-53729 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. Improper access control in Azure File Sync allows an authorized attacker to elevate privileges locally.. EPSS estimates a 0.27% chance of exploitation in the next 30 days.

Description

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

Metrics

CVSS 3.1
7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
0.27%

18.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
MicrosoftAzure File Sync>= 18.0.0.0, < 18.3.0.0
MicrosoftAzure File Sync>= 19.0.0.0, < 19.2.0.0
MicrosoftAzure File Sync>= 20.0.0.0, < 20.1.0.0
MicrosoftAzure File Sync>= 21.0.0.0, <= 21.1.0.0

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2025-53729?
Improper access control in Azure File Sync allows an authorized attacker to elevate privileges locally.
How severe is CVE-2025-53729?
CVE-2025-53729 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.27% probability of exploitation in the next 30 days.
How do I fix CVE-2025-53729?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-53729?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST