CVE-2025-31241
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 double free issue was addressed with improved memory management. This issue is fixed in iOS 18.5 and iPadOS 18.5, iPadOS 17.7.7, macOS Sequoia 15.5, macOS Sonoma 14.7.6, macOS Ventura 13.7.6, tvOS 18.5, visionOS 2.5, watchOS 11.5. A remote attacker may cause an unexpected app termination.
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 · high confidenceA double free vulnerability in Apple's core operating systems (iOS, iPadOS, macOS, tvOS, visionOS, watchOS) allows a remote attacker to trigger memory corruption by freeing the same memory pointer twice, leading to unexpected application termination or potentially further exploitation.
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< 17.7.7>= 18.0, < 18.5< 18.5< 13.7.6>= 14.0, < 14.7.6>= 15.0, < 15.5< 18.5< 2.5< 11.5CVSS 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
- None
- Integrity
- None
- Availability
- Low
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
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 > Version or use Finder/iTunes to view the iOS versionAffected if Version is less than 18.5 (or less than 17.7.7 for older devices that don't support iOS 18)
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Check iPadOS version on iPadGo to Settings > General > About > Version or use Finder/iTunes to view the iPadOS versionAffected if Version is less than 18.5 (or less than 17.7.7 for older devices that don't support iPadOS 18)
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Check macOS versionClick Apple menu > About This Mac, or run 'sw_vers' in TerminalAffected if Version is less than 13.7.6, or between 14.0 and 14.7.5, or between 15.0 and 15.4.x
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Check tvOS version on Apple TVGo to Settings > General > About > VersionAffected if Version is less than 18.5
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Check visionOS version on Apple Vision ProGo to Settings > General > About > VersionAffected if Version is less than 2.5
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Check watchOS version on Apple WatchOpen the Watch app on iPhone, go to My Watch > General > About, or go to Settings > General > About on the Watch itselfAffected if Version is less than 11.5
If the installed OS version falls within any of the affected version ranges for the relevant Apple platform, the device is vulnerable to this double free flaw.
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 · scoped2.511.513.7.6
Apply the available vendor patches by updating affected devices to iOS 18.5, iPadOS 18.5/17.7.7, macOS Sequoia 15.5/Sonoma 14.7.6/Ventura 13.7.6, tvOS 18.5, visionOS 2.5, or watchOS 11.5 as appropriate.
iOS 18.5, iPadOS 17.7.7 or 18.5, macOS Ventura 13.7.6, macOS Sonoma 14.7.6, macOS Sequoia 15.5, tvOS 18.5, visionOS 2.5, watchOS 11.5
- Back up your device data before initiating the update
- For iPhone/iPad: Navigate to Settings > General > Software Update and install the available security update
- For Mac: Navigate to System Settings > General > Software Update and install the available security update
- For Apple Watch: Open the Watch app on iPhone, go to General > Software Update, and install the update
- For Apple TV: Go to Settings > General > Software Update and install the update
- For Apple Vision Pro: Go to Settings > General > Software Update and install the update
- Restart the device after the update completes to ensure all memory management fixes are applied
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation4.0 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 $2,560.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-31241 — 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-2025-31241 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