CVE-2020-3863

HIGH

macOS < 10.15.3 - 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 macOS Catalina 10.15.3, Security Update 2020-001 Mojave, Security Update 2020-001 High Sierra. An application may be able to execute arbitrary code with system privileges.

References (1)

Core 1
Core References
Release Notes, Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT210919

Scores

CVSS v3 7.8
EPSS 0.0127
EPSS Percentile 66.5%
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 (1)
apple/mac_os_x < 10.15.3
Published Oct 27, 2020
Tracked Since Feb 18, 2026