CVE-2023-42958

Local privilege escalation via insufficient permission restrictions

Published Jul 29, 2024 · Updated Mar 13, 2025

Permissions flaw in MobileStorageMounter in Apple macOS before 13.4 allows local users to gain elevated privileges through an app. Apple states only that MobileStorageMounter applies insufficient permission restrictions; the specific operation and input are undisclosed. Execution of an app on the Mac is required, and the bounded result is privilege elevation on the local system.

CVSS severity7.8
High
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Permissions flaw in MobileStorageMounter in Apple macOS before 13.4 allows local users to gain elevated privileges through an app. Apple states only that MobileStorageMounter applies insufficient permission restrictions; the specific operation and input are undisclosed. Execution of an app on the Mac is required, and the bounded result is privilege elevation on the local system.

The record

CVE
CVE-2023-42958
Published
Jul 29, 2024
Updated
Mar 13, 2025
Vendor
Apple
Product
macOS
Classifications
T1068
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 29, 2024CVE publishedPublication date reported by the CVE source.
  2. Mar 13, 2025Record 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 <13.4
  2. Affected versionversion=unspecified <13.4

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Apple · macOSversion=0 <13.4; version=unspecified <13.4

Published CVSS scores

7.8NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
7.8CISA-ADPCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/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.

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

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

T1068Exploitation for Privilege Escalation

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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