CVE-2024-40825

Root-level system-file modification via insufficient APFS checks

Published Sep 16, 2024 · Updated Apr 2, 2026

Improper access control in Apple APFS in macOS before 15 and visionOS before 2 allows local users with root privileges to modify system files. Apple states only that APFS performed insufficient checks and has not disclosed the affected operation or input path. Exploitation requires a malicious local app already running as root, and the bounded result is modification of system-file contents.

CVSS severity4.4
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Apple APFS in macOS before 15 and visionOS before 2 allows local users with root privileges to modify system files. Apple states only that APFS performed insufficient checks and has not disclosed the affected operation or input path. Exploitation requires a malicious local app already running as root, and the bounded result is modification of system-file contents.

The record

CVE
CVE-2024-40825
Published
Sep 16, 2024
Updated
Apr 2, 2026
Vendor
Apple
Product
visionOS
Classifications
CWE-284, T1565.001
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Sep 16, 2024CVE 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 <2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Apple · visionOSversion=0 <2
Apple · macOSversion=0 <15

Published CVSS scores

4.4NVDCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
6.0CISA-ADPCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/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.

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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)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-284Improper Access Control
T1565.001Stored Data Manipulation

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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