CVE-2021-30805

CRITICAL

macOS 10.14-10.14.5 and 11.0-11.4 - Out-of-bounds Write

Title source: llm
STIX 2.1

Description

A memory corruption issue was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.5, Security Update 2021-004 Catalina, Security Update 2021-005 Mojave. An application may be able to execute arbitrary code with kernel privileges.

References (3)

Core 3
Core References
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212602
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212600
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212603

Scores

CVSS v3 9.8
EPSS 0.0315
EPSS Percentile 86.4%
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-787
Status published
Products (5)
apple/mac_os_x 10.14.6 security_update_2019-001 (19 CPE variants)
apple/mac_os_x 10.15.6 supplemental_update
apple/mac_os_x 10.15.7 security_update_2020 (8 CPE variants)
apple/mac_os_x 10.14 - 10.14.6
apple/macos 11.0 - 11.5
Published Sep 08, 2021
Tracked Since Feb 18, 2026