CVE-2025-43400

MEDIUM 6.3

CVSS Score

6.3

EPSS Score

0.0%

EPSS Percentile

0th

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 18.7.1 and iPadOS 18.7.1, iOS 26.0.1 and iPadOS 26.0.1, macOS Sequoia 15.7.1, macOS Sonoma 14.8.1, macOS Tahoe 26.0.1, tvOS 26.1, visionOS 26.0.1, watchOS 26.1. Processing a maliciously crafted font may lead to unexpected app termination or corrupt process memory.

Vendor	apple
Product	ios and ipados
Ecosystems	iOS macOS
Industries	Technology
Published	Sep 29, 2025
Last Updated	Apr 2, 2026

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Affected Versions

Apple / iOS and iPadOS

0 < 18.7.1 0 < 26.0.1

Apple / macOS

0 < 14.8.1 0 < 15.7.1 0 < 26.0.1

Apple / tvOS

0 < 26.1

Apple / visionOS

0 < 26.0.1

Apple / watchOS

0 < 26.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

support.apple.com: https://support.apple.com/en-us/125326 support.apple.com: https://support.apple.com/en-us/125327 support.apple.com: https://support.apple.com/en-us/125328 support.apple.com: https://support.apple.com/en-us/125329 support.apple.com: https://support.apple.com/en-us/125330 support.apple.com: https://support.apple.com/en-us/125338 support.apple.com: https://support.apple.com/en-us/125637 support.apple.com: https://support.apple.com/en-us/125639 seclists.org: http://seclists.org/fulldisclosure/2025/Sep/78 seclists.org: http://seclists.org/fulldisclosure/2025/Sep/73 seclists.org: http://seclists.org/fulldisclosure/2025/Sep/76