CVE-2025-43400

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.

• CWE-787

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

Published

Sep 29, 2025

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

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• CVE-2025-43405A permissions issue was addressed with additional sandbox re…7.5
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