CVE-2023-42928
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 · uneditedThe issue was addressed with improved bounds checks. This issue is fixed in iOS 17.1 and iPadOS 17.1. An app may be able to gain elevated privileges.
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 memory corruption vulnerability in iOS 17.1 and iPadOS 17.1 stemming from insufficient bounds checking allows a malicious application to potentially elevate its privileges beyond what should be permitted, likely by exploiting improper array or buffer handling.
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< 17.1< 17.1CVSS 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
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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 iPhoneOpen Settings > General > About on the iPhone and note the version number displayed next to 'Version'Affected if the version number is less than 17.1 (for example, 17.0.x or any 16.x release)
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Check iPadOS version on iPadOpen Settings > General > About on the iPad and note the version number displayed next to 'Version'Affected if the version number is less than 17.1 (for example, 17.0.x or any 16.x release)
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Identify device type and confirm OSDetermine whether the device is an iPhone (runs iOS) or iPad (runs iPadOS) by checking the device model in Settings > General > About > Model NameAffected if the device is an iPhone running iOS below 17.1 or an iPad running iPadOS below 17.1
A user is affected if their iPhone runs iOS version lower than 17.1 or their iPad runs iPadOS version lower than 17.1, as the vulnerability exists in versions prior to the fixed release.
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 · scoped17.1
Update affected iOS/iPadOS devices to version 17.1 or later to obtain the improved bounds checks that address this vulnerability.
iOS 17.1 and iPadOS 17.1
- Back up your device data using iCloud or iTunes/Finder before starting the update
- Connect your device to Wi-Fi and ensure it has at least 50% battery or is connected to power
- Go to Settings > General > Software Update on the device
- Download and install iOS 17.1 (for iPhone) or iPadOS 17.1 (for iPad)
- Allow the device to restart after the update completes
- Verify the update was successful by checking Settings > General > About > Version
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation1.0 h
- Testing1.0 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 $1,456.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-42928 — 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-2023-42928 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