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CVE-2026-43655

HighPublished

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, watchOS...

Published: May 11, 2026
Updated: May 12, 2026
Assigning CNA: apple
Evidence observed: Aug 8, 2026

Primary CVSS

7.3/ 10High

nvd · CVSS 3.1

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

EPSS probability estimate

0.3%

Low · next 30 days

Percentile: 27.9%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, watchOS 26.5. An app may be able to cause unexpected system termination or read kernel memory.

Sources

CVE-2026-43655-AppleM2ScalerCSCDriver-UAFPoC
Public disclosure for CVE-2026-43655 AppleM2ScalerCSCDriver use-after-free

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