CVE-2021-30901

published 2021-08-24

CVE-2021-30901: Multiple out-of-bounds write issues were addressed with improved bounds checking. This issue is fixed in macOS Monterey 12.0.1, Security Update 2021-007…

Priority P3 40 high 7.8 CVSS 3.1

AV L AC L PR N UI R S U C H I H A H

Multiple out-of-bounds write issues were addressed with improved bounds checking. This issue is fixed in macOS Monterey 12.0.1, Security Update 2021-007 Catalina, macOS Big Sur 11.6.1. A malicious application may be able to execute arbitrary code with kernel privileges.

Affected

10 ranges

Vendor	Product	Version range	Fixed in
apple	mac_os_x	< 10.15.7	10.15.7
apple	mac_os_x	—	—
apple	macos	—	—
apple	macos	>= 11.0 < 11.6.1	11.6.1
apple	macos	>= unspecified < 12.0	12.0
apple	macos	>= unspecified < 2021	2021
apple	macos	>= unspecified < 11.6	11.6
apple	macos_big_sur	—	—
apple	macos_monterey	—	—
apple	security_update_2021-007_catalina	—	—

CVSS provenance

nvd v3.1 7.8 HIGH CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

nvd v2.0 9.3 CRITICAL AV:N/AC:M/Au:N/C:C/I:C/A:C

Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.

CWE-787