CVE-2025-43426
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 logging issue was addressed with improved data redaction. This issue is fixed in iOS 26.1 and iPadOS 26.1, macOS Tahoe 26.1. 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 · moderate confidenceA logging vulnerability in iOS 26.1, iPadOS 26.1, and macOS Tahoe 26.1 allowed sensitive user data to be written to logs without proper redaction, potentially exposing this data to other apps through log access.
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< 26.1CVSS 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 installedOn the iOS device, go to Settings > General > About > Version. Note the version number displayed.Affected if The version shown is earlier than 26.1 (for example, 26.0, 25.x, or earlier).
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Check iPadOS version installedOn the iPad device, go to Settings > General > About > Version. Note the version number displayed.Affected if The version shown is earlier than 26.1.
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Check version via MDM or device management toolIf devices are managed via MDM (Mobile Device Management), query the device inventory or software inventory report to retrieve the iOS/iPadOS version for enrolled devices.Affected if Any managed device reports an iOS or iPadOS version less than 26.1.
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Check macOS Tahoe version for related exposureOn Mac devices, go to System Settings > General > About, or run 'sw_vers' in Terminal, to check the macOS version.Affected if The macOS version is earlier than 26.1 and the device syncs with iOS/iPad devices that may expose logs.
A device is affected if it runs iOS or iPadOS version lower than 26.1, as the logging vulnerability existed in those earlier versions and was fixed in 26.1.
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
Apply iOS 26.1, iPadOS 26.1, or macOS Tahoe 26.1 (or later) to receive the corrected logging with improved data redaction.
iOS 26.1 and iPadOS 26.1
- Back up your iPhone or iPad device before updating
- Open Settings > General > Software Update on the device
- Download and install iOS 26.1 (for iPhone) or iPadOS 26.1 (for iPad)
- Verify the update was successfully applied by checking Settings > General > About > Version
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation1.0 h
- Implementation2.0 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-2025-43426 — 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-2025-43426 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