macOSOperating system · Apple

CVE-2025-43538

MEDIUM · 5.5 CVSS v3.1 Published 2025-12-12
Fix available
A fix is available. Upgrade to 14.8.3 or later.
See remediation →
57/100
Remediation priority · Elevated
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 logging issue was addressed with improved data redaction. This issue is fixed in iOS 18.7.3 and iPadOS 18.7.3, iOS 26.2 and iPadOS 26.2, macOS Sonoma 14.8.3, macOS Tahoe 26.2, visionOS 26.2, watchOS 26.2. An app may be able to access sensitive 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 · high confidence

This is a logging vulnerability where insufficient data redaction in system logs allowed applications to potentially access sensitive user data. The issue stems from improper handling of sensitive information in log outputs.

MitigationApply the vendor-provided updates: iOS 18.7.3/iPadOS 18.7.3 or iOS 26.2/iPadOS 26.2, macOS Sonoma 14.8.3 or macOS Tahoe 26.2, visionOS 26.2, or watchOS 26.2 depending on the affected device.

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:< 14.8.3

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
Local
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.1/AV:L/AC:L/PR:L/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. Check installed macOS version
    Open Terminal and run: sw_vers -productVersion
    Affected if The version is below 14.8.3 (e.g., 14.8.2, 14.8.1, 14.8, 14.7.x, or earlier)
  2. Verify system logging is active
    Check if system logs exist by running: ls -la /var/log/system.log* or log show --predicate 'true' --last 1m | head -20
    Affected if System logging is enabled and logs are being written, making the insufficient redaction flaw applicable
  3. Check for sensitive data in recent logs
    Run: log show --predicate 'true' --last 1h | grep -i -E '(password|token|secret|key|credential|sensitive)' to inspect if any sensitive-looking data appears unredacted in recent log entries
    Affected if Sensitive data fields appear in plaintext within log outputs, confirming the redaction vulnerability is present and exploitable

A system is affected if it runs macOS version below 14.8.3 and has active system logging, with unredacted sensitive data visible in log outputs.

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 14.8.3 or later
Fixed in 14.8.3
Interim mitigation

Apply the vendor-provided updates: iOS 18.7.3/iPadOS 18.7.3 or iOS 26.2/iPadOS 26.2, macOS Sonoma 14.8.3 or macOS Tahoe 26.2, visionOS 26.2, or watchOS 26.2 depending on the affected device.

Recommended fix High confidence

macOS Sonoma 14.8.3 / macOS Tahoe 26.2 (or iOS 18.7.3 / iPadOS 18.7.3 / visionOS 26.2 / watchOS 26.2 depending on device)

  1. Open System Settings (or System Preferences on older macOS versions)
  2. Navigate to General > Software Update
  3. Ensure automatic updates are enabled or click 'Update Now' to install available updates
  4. For macOS, upgrade to version 14.8.3 (Sonoma) or later, or 26.2 (Tahoe) if applicable
  5. For iOS devices, upgrade to iOS 18.7.3 or later
  6. For iPadOS devices, upgrade to iPadOS 18.7.3 or later
  7. For Apple Vision Pro, upgrade to visionOS 26.2 or later
  8. For Apple Watch, upgrade to watchOS 26.2 or later
Caveat Standard Apple update risks - ensure backups before updating; some legacy apps may be incompatible with major OS updates

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

Fix this in macOS Scoped from the published advisory
  • Consultation1.0 h
  • Testing1.0 h
  • Review / QA1.0 h
3.0 hours of engineering $750
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Scan for this in your stack

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dbcve dependency scanner

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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-2025-43538 in production — separate from our analysis above.

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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