CVE-2026-43656

HIGH 7.3

CVSS Score

7.3

EPSS Score

0.0%

EPSS Percentile

6th

An out-of-bounds write issue was addressed with improved input validation. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5. Parsing a maliciously crafted file may lead to an unexpected app termination.

Vendor	apple
Product	ios and ipados
Ecosystems	iOS macOS
Industries	Technology
Published	May 11, 2026
Last Updated	May 12, 2026

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Affected Versions

Apple / iOS and iPadOS

0 < 18.7.9 0 < 26.5

Apple / macOS

0 < 14.8.7 0 < 15.7.7 0 < 26.5

References

NVD ↗ CVE.org ↗ EPSS Data ↗

support.apple.com: https://support.apple.com/en-us/127110 support.apple.com: https://support.apple.com/en-us/127111 support.apple.com: https://support.apple.com/en-us/127115 support.apple.com: https://support.apple.com/en-us/127116 support.apple.com: https://support.apple.com/en-us/127117