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CVE-2018-4327

HighPublished

A memory corruption issue was addressed with improved memory handling. This issue affected versions prior to iOS 11.4.1.

Published: Apr 3, 2019
Updated: Aug 5, 2024
Assigning CNA: apple
Evidence observed: Aug 8, 2026

Primary CVSS

9.3/ 10High

nvd · CVSS 2.0

AV:N/AC:M/Au:N/C:C/I:C/A:C

EPSS probability estimate

3.2%

Low · next 30 days

Percentile: 87.8%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

A memory corruption issue was addressed with improved memory handling. This issue affected versions prior to iOS 11.4.1.

Sources

POC-CVE-2018-4327-and-CVE-2018-4330PoC
Proof-of-concept exploit for iOS Bluetooth stack vulnerabilities CVE-2018-4327 and CVE-2018-4330, enabling ARM PC register control on iPhone 6S via malicious Bluetooth device connection.
brokentoothPoC
POC for CVE-2018-4327

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