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IpadosOperating system · Apple

CVE-2025-43234

CRITICAL · 9.8 CVSS v3.1 Published 2025-07-30
Fix available
A fix is available. Upgrade to 2.6 / 11.6 or later.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

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 · unedited
Multiple memory corruption issues were addressed with improved input validation. This issue is fixed in iOS 18.6 and iPadOS 18.6, macOS Sequoia 15.6, tvOS 18.6, visionOS 2.6, watchOS 11.6. Processing a maliciously crafted texture may lead to 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 confidence

Memory corruption vulnerability in texture processing across multiple Apple operating systems (iOS, iPadOS, macOS, tvOS, visionOS, watchOS). Processing a maliciously crafted texture triggers memory corruption due to insufficient input validation, potentially allowing arbitrary code execution given the CRITICAL CVSS score.

MitigationApply vendor-supplied updates: iOS 18.6, iPadOS 18.6, macOS Sequoia 15.6, tvOS 18.6, visionOS 2.6, and watchOS 11.6. Prioritize devices that process untrusted texture content.

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
IpadosOperating system
Affected:< 18.6
Iphone OsOperating system
Affected:< 18.6
macOSOperating system
Affected:< 15.6
TvosOperating system
Affected:< 18.6
VisionosOperating system
Affected:< 2.6
WatchosOperating system
Affected:< 11.6

CVSS 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
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify your Apple operating system
    Determine which Apple OS runs on the device: iOS (iPhone), iPadOS (iPad), macOS (Mac), tvOS (Apple TV), visionOS (Vision Pro), or watchOS (Apple Watch). Check via Settings > General > About on mobile devices, System Settings > About on macOS, or the Settings app on tvOS/watchOS/visionOS.
    Affected if The device runs any of the listed operating systems.
  2. Check the installed iOS version
    On iPhone, go to Settings > General > About and note the Version number (e.g., 18.5). On iPad, the same path applies for iPadOS.
    Affected if The version is lower than 18.6 (e.g., 18.5, 18.4, etc.).
  3. Check the installed macOS version
    On Mac, click the Apple menu > About This Mac, or run 'sw_vers' in Terminal. Note the version number (e.g., 15.5).
    Affected if The version is lower than 15.6 (e.g., 15.5, 15.4, etc.).
  4. Check the installed tvOS version
    On Apple TV, go to Settings > General > About and note the version number.
    Affected if The version is lower than 18.6.
  5. Check the installed visionOS version
    In the Vision Pro headset, go to Settings > General > About and note the version number.
    Affected if The version is lower than 2.6.
  6. Check the installed watchOS version
    On Apple Watch, go to Settings > General > About, or open the Watch app on paired iPhone and navigate to General > About.
    Affected if The version is lower than 11.6.

You are affected if your device runs any of the listed Apple operating systems and the installed version falls below the fixed release (iOS/iPadOS/tvOS < 18.6, macOS < 15.6, visionOS < 2.6, watchOS < 11.6).

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 · scoped
Upgrade available Upgrade to 2.6 / 11.6 / 15.6 or later
Fixed in 2.611.615.6
Interim mitigation

Apply vendor-supplied updates: iOS 18.6, iPadOS 18.6, macOS Sequoia 15.6, tvOS 18.6, visionOS 2.6, and watchOS 11.6. Prioritize devices that process untrusted texture content.

Recommended fix High confidence

iOS 18.6 / iPadOS 18.6 / macOS Sequoia 15.6 / tvOS 18.6 / visionOS 2.6 / watchOS 11.6

  1. Identify all Apple devices in your environment running iOS, iPadOS, macOS, tvOS, visionOS, or watchOS versions prior to the fixed releases
  2. For iPhone and iPad devices: Upgrade to iOS 18.6 or iPadOS 18.6 respectively via Settings > General > Software Update
  3. For Mac computers: Upgrade to macOS Sequoia 15.6 via System Settings > General > Software Update
  4. For Apple TV devices: Upgrade to tvOS 18.6 via Settings > System > Software Updates
  5. For Apple Vision Pro devices: Upgrade to visionOS 2.6 via Settings > General > Software Update
  6. For Apple Watch devices: Upgrade to watchOS 11.6 via the Watch app on iPhone or directly on the Watch
  7. After upgrading, verify the installed OS version matches or exceeds the fixed release to confirm remediation
Caveat Review Apple release notes for any app compatibility issues or deprecated features before upgrading production devices

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Ipados Scoped from the published advisory
  • Consultation3.0 h
  • Implementation4.0 h
  • Testing2.0 h
  • Review / QA1.0 h
10.0 hours of engineering $1,800
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-43234 in production — separate from our analysis above.

No notes yet

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What this is

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.

What belongs here
  • 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