CVE-2021-30830

HIGH

macOS 10.15-10.15.5 and 11.0-11.5 - 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 Security Update 2021-005 Catalina, macOS Big Sur 11.6. A malicious application may be able to execute arbitrary code with kernel privileges.

References (2)

Core 2
Core References
Release Notes, Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212804
Release Notes, Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212805

Scores

CVSS v3 7.8
EPSS 0.0102
EPSS Percentile 59.1%
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 (3)
apple/mac_os_x 10.15.7 (9 CPE variants)
apple/mac_os_x 10.15 - 10.15.6
apple/macos 11.0 - 11.6
Published Oct 19, 2021
Tracked Since Feb 18, 2026