CVE-2025-24140Network attack vector

Security-feature bypass via missing download quarantine flag

Published Jan 27, 2025 · Updated Apr 2, 2026

Incorrect quarantine handling in iCloud in Apple macOS before 15.3 allows remote attackers to deliver files without quarantine flags. Apple identifies faulty state management in iCloud but has not disclosed the code path or state transition that fails to apply quarantine metadata. An internet-originated file is the required input, and the bounded result is missing quarantine metadata rather than direct code execution.

CVSS severity5.3
Medium
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect quarantine handling in iCloud in Apple macOS before 15.3 allows remote attackers to deliver files without quarantine flags. Apple identifies faulty state management in iCloud but has not disclosed the code path or state transition that fails to apply quarantine metadata. An internet-originated file is the required input, and the bounded result is missing quarantine metadata rather than direct code execution.

The record

CVE
CVE-2025-24140
Published
Jan 27, 2025
Updated
Apr 2, 2026
Vendor
Apple
Product
macOS
Classifications
CWE-276
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 27, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 2, 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=0 <15.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Apple · macOSversion=0 <15.3

Published CVSS scores

5.3NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
5.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-276Incorrect Default Permissions

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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