CVE-2018-4203

HIGH

Apple Iphone OS < 12.0 - Out-of-Bounds Read

Title source: rule
STIX 2.1

Description

An out-of-bounds read was addressed with improved bounds checking. This issue affected versions prior to iOS 12, macOS Mojave 10.14, tvOS 12, watchOS 5.

References (5)

Core 5
Core References
Vendor Advisory x_refsource_misc
https://support.apple.com/kb/HT209107
Vendor Advisory x_refsource_misc
https://support.apple.com/kb/HT209193
Vendor Advisory x_refsource_misc
https://support.apple.com/kb/HT209106
Vendor Advisory x_refsource_misc
https://support.apple.com/kb/HT209139
Vendor Advisory x_refsource_misc
https://support.apple.com/kb/HT209108

Scores

CVSS v3 7.5
EPSS 0.0035
EPSS Percentile 57.6%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Details

CWE
CWE-125
Status published
Products (4)
apple/iphone_os < 12.0
apple/mac_os_x < 10.14
apple/tvos < 12
apple/watchos < 5.0
Published Apr 03, 2019
Tracked Since Feb 18, 2026