CVE-2026-43666
CVSS Score
6.2
EPSS Score
0.0%
EPSS Percentile
7th
An out-of-bounds write issue was addressed with improved bounds checking. 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, tvOS 26.5, visionOS 26.5, watchOS 26.5. An attacker on the local network may be able to cause a denial-of-service.
| Vendor | apple |
| Product | ios and ipados |
| Ecosystems | |
| 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
Apple / tvOS
0 < 26.5
Apple / visionOS
0 < 26.5
Apple / watchOS
0 < 26.5
References
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 support.apple.com: https://support.apple.com/en-us/127118 support.apple.com: https://support.apple.com/en-us/127119 support.apple.com: https://support.apple.com/en-us/127120