CVE-2025-53729
Microsoft Azure File Sync Elevation of Privilege Vulnerability
HIGH
7.8
CVSS Score
Published: August 12, 2025 at 05:09 PM UTC
Updated: June 17, 2026 at 09:38 AM UTC
1 product affected across 1 vendorAzure File Sync
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Severity
HIGH7.8
Exploit prediction
EPSS 0.3%
SSVC
No known exploit
Description
Improper access control in Azure File Sync allows an authorized attacker to elevate privileges locally.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
1.0.0 ≤ v < 18.3.0.018.0.0.0 ≤ v < 18.3.0.019.0.0.0 ≤ v < 19.2.0.020.0.0.0 ≤ v < 20.1.0.021.0.0.0 ≤ v ≤ 21.1.0.01.0.0
Affected range stops below 18.3.0.0, so it looks safe — our inference, not a vendor statement
Affected range stops below 19.2.0.0, so it looks safe — our inference, not a vendor statement
Affected range stops below 20.1.0.0, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (1)
Vendor AdvisoryPatch
Source: [email protected]
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53729SSVC — Action Prioritization
SSVCNo known exploitNot automatableTotal impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
7.8HIGHmicrosoft
Vector?
Quick Info
StatusANALYZED
CWE
CWE-284
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