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TI-2024-14157 Aliases CVE-2024-21397GHSA-77qj-g9f7-xqj9

Microsoft Azure File Sync Elevation of Privilege Vulnerability

Priority LOW 25CWE-59Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
High
Impact type
Privilege escalation
Confidentiality · integrity · availability
None · High · Low
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from Microsoft.

Summary

Microsoft Azure File Sync Elevation of Privilege Vulnerability

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00497 42nd percentileScored 2026-11-07
Fix Fixed Azure File Sync (Microsoft): 16.2, 17.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MicrosoftAzure File Sync16.0.0 to before 16.216.2Patch availableCNA
MicrosoftAzure File Sync15.0.0 to before 16.216.2Patch availableCNA
MicrosoftAzure File Sync14.0.0 to before 16.216.2Patch availableCNA
MicrosoftAzure File Sync17.0.0 to before 17.117.1Patch availableCNA
  • Azure File Sync VendorMicrosoft Affected 16.0.0 to before 16.2 Fixed in 16.2 Patch available CNA
  • Azure File Sync VendorMicrosoft Affected 15.0.0 to before 16.2 Fixed in 16.2 Patch available CNA
  • Azure File Sync VendorMicrosoft Affected 14.0.0 to before 16.2 Fixed in 16.2 Patch available CNA
  • Azure File Sync VendorMicrosoft Affected 17.0.0 to before 17.1 Fixed in 17.1 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:azure_file_sync:*:*:*:*:*:*:*:*14.0.0.0 to before 16.2.0.0VulnerableMicrosoft
cpe:2.3:a:microsoft:azure_file_sync:17.0.0.0:*:*:*:*:*:*:*17.0.0.0VulnerableMicrosoft
  • cpe:2.3:a:microsoft:azure_file_sync:*:*:*:*:*:*:*:* Versions 14.0.0.0 to before 16.2.0.0 Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:azure_file_sync:17.0.0.0:*:*:*:*:*:*:* Versions 17.0.0.0 Vulnerable ·Microsoft

Remediation

  • Fix · CNA Azure File Sync (Microsoft) Fixed in 16.2
  • Fix · CNA Azure File Sync (Microsoft) Fixed in 16.2
  • Fix · CNA Azure File Sync (Microsoft) Fixed in 16.2
  • Fix · CNA Azure File Sync (Microsoft) Fixed in 17.1

Vendor assessments

Microsoft

Microsoft's page for this CVE →

Impact
Elevation of Privilege
Exploited
No
Publicly disclosed
No
Exploitability
Exploitation Less Likely
ProductStatusPlan or fix
Azure File Sync v14.0Fixed 16.2 · Security Update
Azure File Sync v15.0Fixed 16.2 · Security Update
Azure File Sync v16.0Fixed 16.2 · Security Update
Azure File Sync v17.0Fixed 17.1 · Security Update

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-21397
  2. 2026-10-03 Alias added: GHSA-77qj-g9f7-xqj9

References

Patch 1

  • TI-2025-33640 Microsoft Azure File Sync Elevation of Privilege Vulnerability CVSS 3.1HIGH 7.8
  • TI-2025-21349 Microsoft Azure File Sync Elevation of Privilege Vulnerability CVSS 3.1HIGH 7.0
  • TI-2024-23320 Microsoft Azure File Sync Elevation of Privilege Vulnerability CVSS 3.1MEDIUM 4.4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences