macOS 11.x < 11.6.2 (HT212979)

high Nessus Plugin ID 156222


The remote host is missing a macOS security update.


The remote host is running a version of macOS / Mac OS X that is 11.x prior to 11.6.2 Big Sur. It is, therefore, affected by multiple vulnerabilities including the following:

- A buffer overflow issue was addressed with improved memory handling. Processing a maliciously crafted USD file may lead to unexpected application termination or arbitrary code execution. (CVE-2021-30979)

- An out-of-bounds read was addressed with improved input validation. Playing a malicious audio file may lead to arbitrary code execution. (CVE-2021-30958)

- An out-of-bounds write issue was addressed with improved bounds checking. Processing a maliciously crafted USD file may disclose memory contents. (CVE-2021-30929)

Note that Nessus has not tested for these issues but has instead relied only on the operating system's self-reported version number.


Upgrade to macOS 11.6.2 or later.

See Also

Plugin Details

Severity: High

ID: 156222

File Name: macos_HT212979.nasl

Version: 1.8

Type: local

Agent: macosx

Published: 12/21/2021

Updated: 3/23/2023

Supported Sensors: Nessus Agent, Nessus

Risk Information


Risk Factor: Critical

Score: 9.7


Risk Factor: High

Base Score: 9.3

Temporal Score: 8.1

Vector: CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2021-30981


Risk Factor: High

Base Score: 8.8

Temporal Score: 8.4

Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:H/RL:O/RC:C

CVSS Score Source: CVE-2021-30935

Vulnerability Information

CPE: cpe:/o:apple:mac_os_x, cpe:/o:apple:macos

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 12/13/2021

Vulnerability Publication Date: 12/13/2021

Reference Information

CVE: CVE-2021-30767, CVE-2021-30927, CVE-2021-30929, CVE-2021-30931, CVE-2021-30935, CVE-2021-30937, CVE-2021-30938, CVE-2021-30939, CVE-2021-30940, CVE-2021-30941, CVE-2021-30942, CVE-2021-30945, CVE-2021-30946, CVE-2021-30947, CVE-2021-30949, CVE-2021-30950, CVE-2021-30958, CVE-2021-30959, CVE-2021-30961, CVE-2021-30963, CVE-2021-30965, CVE-2021-30968, CVE-2021-30969, CVE-2021-30970, CVE-2021-30971, CVE-2021-30973, CVE-2021-30975, CVE-2021-30976, CVE-2021-30977, CVE-2021-30979, CVE-2021-30980, CVE-2021-30981, CVE-2021-30982, CVE-2021-30990, CVE-2021-30995

APPLE-SA: APPLE-SA-2021-12-15-3, HT212979

IAVA: 2021-A-0577-S