CVE-2021-30845

Published: Oct 19, 2021Modified: Jun 17, 2026

5.5

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Exploitability: 1.8 / Impact: 3.6

Source: NVD

Description

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Big Sur 11.6. A local user may be able to read kernel memory.

Affected (1)

Products: Apple: Macos

Apple

1 product

Macos

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Apple Macos	From 11.0 to 11.6

Related CWEs

CWE-125

Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

References (2)

https://support.apple.com/en-us/HT212804

Source: product-security@apple.com

Vendor Advisory

https://support.apple.com/en-us/HT212804

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

Timeline

No history available yet.