CVE-2024-35253

Unauthorized file deletion via improper link resolution

Published Jun 11, 2024 · Updated Aug 10, 2026

Link-following in Microsoft Azure File Sync before 18.1 allows local users to delete files outside authorized locations. The agent file-deletion path resolves attacker-controlled links without ensuring the resolved target remains within an authorized location. Exploitation requires low local privileges and user interaction; Microsoft has not disclosed the triggering workflow or required race conditions.

CVSS severity4.4
Medium
EPSS probability0.74%
Next 30 days · Sep 17, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Link-following in Microsoft Azure File Sync before 18.1 allows local users to delete files outside authorized locations. The agent file-deletion path resolves attacker-controlled links without ensuring the resolved target remains within an authorized location. Exploitation requires low local privileges and user interaction; Microsoft has not disclosed the triggering workflow or required race conditions.

The record

CVE
CVE-2024-35253
Published
Jun 11, 2024
Updated
Aug 10, 2026
Vendor
Microsoft
Product
Azure File Sync
Classifications
CWE-59, T1485
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 11, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.0.0 <18.1
  2. Affected versionversion=16.0.0 <17.3
  3. Affected versionversion=17.0.0 <17.3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Microsoft · Azure File Syncversion=1.0.0 <18.1; version=16.0.0 <17.3; version=17.0.0 <17.3

Published CVSS scores

4.4Microsoft CorporationCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 11, 2026Sep 17, 2026
Latest reporting daySep 17, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-59Improper Link Resolution Before File Access ('Link Following')
T1485Data Destruction

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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