CVE-2025-43379
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 · uneditedThis issue was addressed with improved validation of symlinks. This issue is fixed in iOS 26.1 and iPadOS 26.1, macOS Sequoia 15.7.2, macOS Sonoma 14.8.2, macOS Tahoe 26.1, tvOS 26.1, visionOS 26.1, watchOS 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 confidenceA symlink validation vulnerability in Apple operating systems allowed an application to access protected user data through improperly validated symbolic links. The fix implements improved validation of symlinks to prevent path traversal attacks that could bypass sandboxing or access controls.
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< 26.1< 26.1< 14.8.2>= 15.0, < 15.7.2< 26.1< 26.1< 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 iOS version on iPhoneGo to Settings > General > About on the device and note the Version numberAffected if Version is less than 26.1
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Check iPadOS version on iPadGo to Settings > General > About on the device and note the Version numberAffected if Version is less than 26.1
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Check macOS versionRun 'sw_vers -productVersion' in Terminal, or go to System Settings > General > About and note the macOS versionAffected if Version is 14.8.2 or lower, OR between 15.0 and 15.7.2 (inclusive)
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Check tvOS versionGo to Settings > General > About on Apple TV and note the Version numberAffected if Version is less than 26.1
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Check watchOS versionOpen the Watch app on paired iPhone, go to My Watch > General > About and note the watchOS versionAffected if Version is less than 26.1
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Check visionOS versionGo to Settings > General > About on Vision Pro device and note the Version numberAffected if Version is less than 26.1
The device is affected if it runs any of the listed Apple OS versions below the patched releases and has applications that can create or follow symbolic links to access protected user data directories.
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 · scoped14.8.215.7.226.1
Update affected devices to iOS 26.1, iPadOS 26.1, macOS Sequoia 15.7.2, macOS Sonoma 14.8.2, macOS Tahoe 26.1, tvOS 26.1, visionOS 26.1, or watchOS 26.1. Ensure automatic updates are enabled for end-user devices.
iOS 26.1, iPadOS 26.1, macOS Sonoma 14.8.2, macOS Sequoia 15.7.2, tvOS 26.1, visionOS 26.1, watchOS 26.1
- For iPhone/iPad: Go to Settings > General > Software Update and install the available update to reach iOS/iPadOS 26.1
- For macOS: Go to System Settings > General > Software Update and install the available update to reach macOS Sonoma 14.8.2 or macOS Sequoia 15.7.2 as applicable
- For Apple TV: Go to Settings > System > Software Updates and update to tvOS 26.1
- For Apple Watch: Go to Settings > General > Software Update on the paired iPhone or directly on Watch and update to watchOS 26.1
- For Apple Vision Pro: Go to Settings > General > Software Update and update to visionOS 26.1
- After updating, verify the OS version in Settings matches the fixed release
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation1.0 h
- Testing1.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-43379 — 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-2025-43379 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
- No spam, self-promotion, credentials, or personal data