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Apple

Apple Multiple Products Improper Locking Vulnerability

CVE-2025-43510

What this means

This is rated high severity (7.8 out of 10). It is on the known-exploited catalogue, which means attacks using it have already been seen. Ask IT whether Apple Ipados, Apple Iphone Os and Apple Macos, and 3 more are in your estate, and treat that as the priority.

Full vendor description

A memory corruption issue was addressed with improved lock state checking. This issue is fixed in iOS 18.7.2 and iPadOS 18.7.2, iOS 26.1 and iPadOS 26.1, macOS Sequoia 15.7.2, macOS Sonoma 14.8.2, macOS Tahoe 26.1, tvOS 26.1, visionOS 26.1, watchOS 26.1. A malicious application may cause unexpected changes in memory shared between processes.

Scoring and exploitation

7.8/ 10
CVSS 3.1 base scoreHigh

Exploitable only with local access without any account, but only if a user takes an action, such as opening a file or link. High impact on confidentiality, integrity and availability.

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitability

Longer bar: easier to attack

Attack vectorLocalAV:L
Attack complexityLowAC:L
Privileges requiredNonePR:N
User interactionRequiredUI:R
ScopeUnchangedS:U

Impact

Longer bar: more harm

ConfidentialityHighC:H
IntegrityHighI:H
AvailabilityHighA:H
~0.4% estimated chance of attack in 30 daysModel estimate (): a probability signal, not confirmed exploitation
Exploited in the wild
Yes — confirmed exploitation (US CISA )
Not reported
Listed product
Apple Multiple Products

Weaknesses

CWE-667

Affected products ()

  • Apple Ipados
  • Apple Iphone Os
  • Apple Macos
  • Apple Tvos
  • Apple Visionos
  • Apple Watchos
Show the raw CPE strings (9)
  • cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:ipados:26.0:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:iphone_os:26.0:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:macos:26.0:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*

References

10 links from the CVE record, grouped by site; the vendor's advisory comes first.

  • Type Vulnerability

    Apple watchOS, iOS, iPadOS, macOS, visionOS, and tvOS contain an improper locking vulnerability that could allow a malicious application to cause unexpected changes in memory shared between processes.

    Next step: Confirm whether Apple Multiple Products is in your estate.

    Who's reporting

    1 of 3 perspectives

    Official authority: Official 1Vendor statement missing. no VendorResearcher coverage missing. no Researcher1 signal

    Only official coverage so far. Treat as an early signal.

    CVE-2025-43510