CVE-2023-42887

Arbitrary file disclosure via NSOpenPanel sandbox bypass

Published Jan 23, 2024 · Updated Nov 4, 2025

Sandbox bypass in Apple macOS Ventura before 13.6.4 and Sonoma before 14.2 allows local users to read arbitrary files via NSOpenPanel. Apple identifies insufficient sandbox restrictions but does not disclose the missing access check or affected code path. Exploitation requires user interaction with a malicious app; the reported consequence is file disclosure without integrity or availability impact.

CVSS severity6.3
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Sandbox bypass in Apple macOS Ventura before 13.6.4 and Sonoma before 14.2 allows local users to read arbitrary files via NSOpenPanel. Apple identifies insufficient sandbox restrictions but does not disclose the missing access check or affected code path. Exploitation requires user interaction with a malicious app; the reported consequence is file disclosure without integrity or availability impact.

The record

CVE
CVE-2023-42887
Published
Jan 23, 2024
Updated
Nov 4, 2025
Vendor
Apple
Product
macOS
Classifications
T1005
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 23, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 4, 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=unspecified <13.6
  2. Affected versionversion=unspecified <14.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Apple · macOSversion=unspecified <13.6; version=unspecified <14.2

Published CVSS scores

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

T1005Data from Local System

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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