macOSOperating system · Apple

CVE-2023-42861

MEDIUM · 6.5 CVSS v3.1 Published 2023-10-25
Fix available
A fix is available. Upgrade to 14.1 or later.
See remediation →
71/100
Remediation priority · Elevated
Remotely reachable 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 state management. This issue is fixed in macOS Sonoma 14.1. An attacker with knowledge of a standard user's credentials can unlock another standard user's locked screen on the same Mac.

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 · high confidence

A logic flaw in macOS state management allows an authenticated local user with standard credentials to bypass the lock screen and unlock another standard user's session on the same Mac. The vulnerability exploits insufficient validation of user identity state when switching between locked sessions.

MitigationApply macOS Sonoma 14.1 or later via Apple Software Update. In enterprise environments, test patch compatibility before broad deployment.

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:>= 14.0, < 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
Low
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/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. Check installed macOS version
    Run 'sw_vers -productVersion' in Terminal or click Apple menu > About This Mac > macOS version
    Affected if Version is exactly 14.0 (macOS Sonoma 14.0)
  2. Confirm macOS major version
    Run 'uname -r' or check System Settings > General > About. macOS Sonoma is version 14.x
    Affected if System is running macOS 14.0.x (the single vulnerable version)
  3. Verify patch status
    Run 'softwareupdate --history' | grep -i 'macOS Sonoma 14.1' or check System Settings > General > Software Update for available updates
    Affected if System has not received the 14.1 update or later

Affected only if the system runs macOS Sonoma 14.0 and has not been updated to 14.1 or later; version 14.1 and above are not vulnerable.

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

Apply macOS Sonoma 14.1 or later via Apple Software Update. In enterprise environments, test patch compatibility before broad deployment.

Recommended fix High confidence

macOS Sonoma 14.1 or later

  1. Back up your Mac using Time Machine or another backup method before performing any system update.
  2. Open System Settings (or System Preferences on older macOS versions).
  3. Click on General in the sidebar, then click Software Update.
  4. Wait for macOS to check for updates.
  5. If macOS Sonoma 14.1 or later is available, click Download and Install.
  6. Follow the on-screen instructions to complete the installation. Your Mac may restart during the process.
  7. After the update completes, verify the installation by checking System Settings > General > About to confirm macOS 14.1 or later is installed.

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-2023-42861 — 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-2023-42861 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