CVE-2025-43351
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 · uneditedA permissions issue was addressed with additional restrictions. This issue is fixed in macOS Tahoe 26.1. An app may be able to access protected 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 confidenceThis is a permissions bypass vulnerability in macOS Tahoe 26.1 where an application could improperly access protected user data due to insufficient access controls. The fix involved adding additional restrictions to prevent unauthorized access to sensitive user information.
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< 26.1CVSS 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 checksWork through these to decide whether this CVE applies to you.
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Check installed macOS versionOpen System Settings > General > About, or run 'sw_vers' in TerminalAffected if The version shown is earlier than 26.1 (such as 26.0, 25.x, 24.x, etc.)
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Confirm macOS Tahoe namingVerify the system is running macOS Tahoe (the 26.x release cycle), not an earlier macOS naming schemeAffected if The system reports a version in the 25.x or earlier range, indicating it is not the Tahoe release that contains the fix
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Review application permissionsCheck System Settings > Privacy & Security to see which applications have access to sensitive data categories (documents, contacts, photos, etc.)Affected if Applications retain broad access to protected user data without additional restrictions, which would indicate the vulnerable state
If the Mac is running any macOS version earlier than 26.1, the insufficient access controls that allow unauthorized user data access are present in the environment.
Generated from the published advisory. Verify against your own configuration.
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 · scoped26.1
Update to macOS Tahoe 26.1 or later to apply the fix. Organizations should verify that all managed macOS devices are updated and review application permissions if any custom workarounds were previously implemented.
macOS Tahoe 26.1 or later
- Back up your Mac before performing any system update
- Go to System Settings > General > Software Update
- Check for available updates
- Install macOS Tahoe 26.1 or later if presented
- Restart your Mac if prompted to complete the installation
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation1.0 h
- Testing2.0 h
- Review / QA1.0 h
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 locallyCheck whether your project pulls in CVE-2025-43351 — 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 sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-43351 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- 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
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