Vulnerability details

CVE-2026-43809

Apple iOS and iPadOSApple macOS
CVSS 3.1
9.8Critical

Official description

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. An app may be able to cause unexpected system termination.

CVSS scores

ScoreVersionSourceVector
9.8Critical 3.1 CISA ADP / Vulnrichment (CISA-ADP) CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

VendorProductVersionsSource
Apple iOS and iPadOS v < 18.7.10 CVEProject cvelistV5 (CNA)
Apple macOS v < 14.8.8 CVEProject cvelistV5 (CNA)
Apple macOS v < 15.7.8 CVEProject cvelistV5 (CNA)
Apple macOS v < 26.6 CVEProject cvelistV5 (CNA)

References and advisories

4
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Details

Published
2026-07-27
Last updated
2026-08-18
State
Published
Assigner (CNA)
apple

Exploit prediction (EPSS)

0.6%
Probability of exploitation in 30 days
49.1%
Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable
Yes
Exploitation
None
Technical impact
Total

Weaknesses (CWE)

  • CWE-125
    Out-of-bounds Read