CVE-2021-1788

HIGH

iPadOS < 14.4 - Use-After-Free via Malicious Web Content

Title source: llm
STIX 2.1

Description

A use after free issue was addressed with improved memory management. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, tvOS 14.4, watchOS 7.3, iOS 14.4 and iPadOS 14.4, Safari 14.0.3. Processing maliciously crafted web content may lead to arbitrary code execution.

References (7)

Core 7
Core References
Release Notes, Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212147
Release Notes, Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212146
Release Notes, Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212148
Release Notes, Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212149
Release Notes, Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212152
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2021/dsa-4923

Scores

CVSS v3 8.8
EPSS 0.0160
EPSS Percentile 72.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

CWE
CWE-416
Status published
Products (11)
apple/ipados < 14.4
apple/iphone_os < 14.4
apple/mac_os_x 10.14.6 (14 CPE variants)
apple/mac_os_x 10.15.7 (2 CPE variants)
apple/mac_os_x 10.14 - 10.14.6
apple/macos 11.0 - 11.2
apple/safari < 14.0.3
apple/tvos < 14.4
apple/watchos < 7.3
debian/debian_linux 10.0
... and 1 more
Published Apr 02, 2021
Tracked Since Feb 18, 2026