CVE-2025-43507
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 privacy issue was addressed by moving sensitive data. This issue is fixed in iOS 18.7.2 and iPadOS 18.7.2, iOS 26.1 and iPadOS 26.1, macOS Tahoe 26.1, visionOS 26.1, watchOS 26.1. An app may be able to fingerprint the user.
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 privacy bypass vulnerability affecting multiple Apple operating systems (iOS, iPadOS, macOS, visionOS, watchOS). The issue allowed applications to fingerprint users - enabling tracking of users across sessions without consent by accessing sensitive data that should have been protected. Apple addressed it by moving sensitive data to prevent user identification.
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< 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
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/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 iPhone device and note the version number listed next to 'Software Version'Affected if The version number is lower than 26.1 (for example, 18.x, 17.x)
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Check iPadOS version on iPadGo to Settings > General > About on the iPad device and note the version number listed next to 'Software Version'Affected if The version number is lower than 26.1 (for example, 18.x, 17.x)
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Check visionOS version on Apple VisionGo to Settings > General > About on the Apple Vision device and note the version number listed next to 'Software Version'Affected if The version number is lower than 26.1 (for example, 1.x)
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Check watchOS version on Apple WatchOpen the Watch app on the paired iPhone, go to My Watch > General > About, and note the version number; alternatively, go to Settings > General > About on the Apple Watch itselfAffected if The version number is lower than 26.1 (for example, 11.x, 10.x)
A user is affected if any of their devices (iPhone, iPad, Apple Vision, or Apple Watch) run an OS version lower than 26.1, as older versions allow applications to access sensitive data for user fingerprinting without consent.
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
Users should update their devices to the fixed versions: iOS 18.7.2/iPadOS 18.7.2 or iOS 26.1/iPadOS 26.1, macOS Tahoe 26.1, visionOS 26.1, and watchOS 26.1. No application code changes are required as this is an OS-level fix.
iOS 26.1, iPadOS 26.1, visionOS 26.1, watchOS 26.1 (or iOS 18.7.2/iPadOS 18.7.2 for 18.x branches)
- Upgrade iPhone to iOS 26.1 or later
- Upgrade iPad to iPadOS 26.1 or later
- Upgrade Apple Vision to visionOS 26.1 or later
- Upgrade Apple Watch to watchOS 26.1 or later
- Alternatively, for iOS/iPadOS 18.x branches, upgrade to iOS 18.7.2/iPadOS 18.7.2 or later
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-2025-43507 — 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-2025-43507 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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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.
- 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