CVE-2023-42918

Local sandbox escape via insufficient permission restrictions

Published Jul 29, 2024 · Updated Aug 2, 2024

Sandbox escape in the Model I/O component of Apple macOS before 14 allows local users to bypass sandbox restrictions through a permissions issue. Model I/O applies insufficient permission restrictions to a sandboxed process, but Apple has not disclosed the affected operation. Exploitation requires local execution and user interaction; the published impact is limited to escape from the originating application sandbox.

CVSS severity6.3
Medium
EPSS probability0.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Sandbox escape in the Model I/O component of Apple macOS before 14 allows local users to bypass sandbox restrictions through a permissions issue. Model I/O applies insufficient permission restrictions to a sandboxed process, but Apple has not disclosed the affected operation. Exploitation requires local execution and user interaction; the published impact is limited to escape from the originating application sandbox.

The record

CVE
CVE-2023-42918
Published
Jul 29, 2024
Updated
Aug 2, 2024
Vendor
Apple
Product
macOS
Classifications
CWE-693
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 29, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record 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 <14.0
  2. Affected versionversion=unspecified <14

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Apple · macOSversion=0 <14.0; version=unspecified <14

Published CVSS scores

6.3NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N
8.6CISA-ADPCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-693Protection Mechanism Failure

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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