CVE-2021-30771

HIGH

Apple OSes - Code Execution via Malicious Font File

Title source: manual
STIX 2.1

Description

An out-of-bounds write was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.4, iOS 14.6 and iPadOS 14.6, watchOS 7.5, tvOS 14.6. Processing a maliciously crafted font file may lead to arbitrary code execution.

References (4)

Core 4
Core References
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212528
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212529
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212532
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212533

Scores

CVSS v3 7.8
EPSS 0.0126
EPSS Percentile 66.1%
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-787
Status published
Products (5)
apple/ipados < 14.6
apple/iphone_os < 14.6
apple/macos 11.0 - 11.4
apple/tvos < 14.6
apple/watchos < 7.5
Published Mar 18, 2022
Tracked Since Feb 18, 2026