CVE-2020-9866

CRITICAL

Apple Mac OS X < 10.15.6 - Buffer Overflow

Title source: rule
STIX 2.1

Description

A buffer overflow was addressed with improved bounds checking. This issue is fixed in macOS Catalina 10.15.6, Security Update 2020-004 Mojave, Security Update 2020-004 High Sierra. A buffer overflow may result in arbitrary code execution.

References (1)

Core 1
Core References
Release Notes, Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT211289

Scores

CVSS v3 9.8
EPSS 0.0121
EPSS Percentile 79.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-120
Status published
Products (1)
apple/mac_os_x < 10.15.6
Published Oct 27, 2020
Tracked Since Feb 18, 2026