macOSOperating system · Apple

CVE-2023-42835

HIGH · 7.5 CVSS v3.1 Published 2024-02-21
Fix available
A fix is available. Upgrade to 14.1 or later.
See remediation →
84/100
Remediation priority · High
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
A logic issue was addressed with improved checks. This issue is fixed in macOS Sonoma 14.1. An attacker may be able to access user data.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

A logic flaw in macOS Sonoma allowed an attacker to bypass security checks and access user data. The vulnerability was addressed with improved validation checks in the macOS Sonoma 14.1 update, likely involving improper access control enforcement in a system component.

MitigationUpdate affected macOS systems to Sonoma 14.1 or later to apply Apple's improved logic checks. In enterprise environments, validate that the patch deployment completes successfully and does not introduce compatibility issues with existing workflows.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
macOSOperating system
Affected:< 14.1

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify the installed macOS version
    Run 'sw_vers -productVersion' in Terminal to display the exact macOS version number
    Affected if The version displayed is 14.0 or below (any version prior to 14.1)
  2. Confirm the macOS release name
    Run 'sw_vers -productName' to verify the system is running macOS Sonoma
    Affected if The system is running macOS Sonoma and the version from step 1 is below 14.1
  3. Check the build number for precision
    Run 'sw_vers -buildVersion' to obtain the specific build, then compare against known pre-14.1 Sonoma builds
    Affected if The build version corresponds to a macOS Sonoma release older than the 14.1 security update

A system is affected if it is running any version of macOS Sonoma prior to version 14.1, as the logic flaw existed in the pre-14.1 releases and was addressed by Apple's improved validation checks in the 14.1 update.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 14.1 or later
Fixed in 14.1
Interim mitigation

Update affected macOS systems to Sonoma 14.1 or later to apply Apple's improved logic checks. In enterprise environments, validate that the patch deployment completes successfully and does not introduce compatibility issues with existing workflows.

Recommended fix High confidence

macOS Sonoma 14.1 or later

  1. Back up your Mac using Time Machine or another backup method before updating
  2. Connect your Mac to a power source
  3. Open System Settings (or System Preferences on older macOS versions)
  4. Click on 'General' in the sidebar
  5. Click 'Software Update'
  6. Wait for macOS to check for available updates
  7. If macOS Sonoma 14.1 or later is available, click 'Update Now' or 'Upgrade Now' to download and install the update
  8. Restart your Mac when prompted to complete the installation
Caveat Standard macOS upgrade considerations apply - verify app compatibility and ensure sufficient free disk space (recommended 15GB+ free)

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in macOS Scoped from the published advisory
  • Consultation2.0 h
  • Implementation1.0 h
  • Testing2.0 h
  • Review / QA1.0 h
6.0 hours of engineering $1,060
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,696.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2023-42835 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2023-42835 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data