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CVE-2026-43666

CVE-2026-43666

CVSS 6.2 MEDIUMEPSS 0.1%CWE-787
Vexday Risk Score
13Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 6.2EPSS 0.1%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
11 May 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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.
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
Apple · iOS and iPadOSApple · macOSApple · tvOSApple · visionOSApple · watchOS

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References
https://support.apple.com/en-us/127110https://support.apple.com/en-us/127111https://support.apple.com/en-us/127115https://support.apple.com/en-us/127116https://support.apple.com/en-us/127117https://support.apple.com/en-us/127118https://support.apple.com/en-us/127119https://support.apple.com/en-us/127120