Description
An out-of-bounds read was addressed with improved input validation. This issue is fixed in iOS 14.7, macOS Big Sur 11.5, watchOS 7.6, tvOS 14.7, Security Update 2021-004 Catalina. Processing a maliciously crafted font file may lead to arbitrary code execution.
References (5)
Core 5
Core References
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212601
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212602
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212605
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212600
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212604
Scores
CVSS v3
7.8
EPSS
0.0062
EPSS Percentile
70.3%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Details
CWE
CWE-125
Status
published
Products (6)
apple/iphone_os
< 14.7
apple/mac_os_x
10.15.7 (9 CPE variants)
apple/mac_os_x
10.15 - 10.15.6
apple/macos
< 11.5
apple/tvos
< 14.7
apple/watchos
< 7.6
Published
Sep 08, 2021
Tracked Since
Feb 18, 2026