Skip to main content
Apexward Pulse

Apple · Memory corruption

Apple Multiple Products Classic Buffer Overflow Vulnerability

CVE-2025-43520

What this means

This is rated medium severity (5.5 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.

Full vendor description

A memory corruption issue was addressed with improved memory handling. 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 be able to cause unexpected system termination or write kernel memory.

Scoring and exploitation

5.5/ 10
CVSS 3.1 base scoreMedium

Exploitable only with local access and a low-privilege account, and no one has to click or open anything. High impact on availability.

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

Exploitability

Longer bar: easier to attack

Attack vectorLocalAV:L
Attack complexityLowAC:L
Privileges requiredLowPR:L
User interactionNoneUI:N
ScopeUnchangedS:U

Impact

Longer bar: more harm

ConfidentialityNoneC:N
IntegrityNoneI:N
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-120

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.

Related feed events

  • Apple Multiple Products Classic Buffer Overflow Vulnerability

    Type Vulnerability

    Apple watchOS, iOS, iPadOS, macOS, visionOS, and tvOS contain a classic buffer overflow vulnerability which could allow a malicious application to cause unexpected system termination or write kernel…

    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.

    Apple Multiple Products
    CVE-2025-43520