CVE-2020-3857

HIGH

iPadOS < 13.3.1 - Out-of-bounds Write

Title source: llm
STIX 2.1

Description

A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 13.3.1 and iPadOS 13.3.1, macOS Catalina 10.15.3, tvOS 13.3.1, watchOS 6.1.2. An application may be able to execute arbitrary code with system privileges.

References (4)

Core 4
Core References
Release Notes, Vendor Advisory x_refsource_misc
https://support.apple.com/HT210919
Release Notes, Vendor Advisory x_refsource_misc
https://support.apple.com/HT210918
Release Notes, Vendor Advisory x_refsource_misc
https://support.apple.com/HT210921
Release Notes, Vendor Advisory x_refsource_misc
https://support.apple.com/HT210920

Scores

CVSS v3 7.8
EPSS 0.0037
EPSS Percentile 29.1%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-787
Status published
Products (5)
apple/ipados < 13.3.1
apple/iphone_os < 13.3.1
apple/mac_os_x < 10.15.3
apple/tvos < 13.3.1
apple/watchos < 6.1.2
Published Feb 27, 2020
Tracked Since Feb 18, 2026