macOS 11.x < 11.4 (HT212529)

critical Nessus Plugin ID 149986


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 11.4 Big Sur. It is, therefore, affected by multiple vulnerabilities including the following:

- A remote attacker may be able to cause unexpected application termination or arbitrary code execution.

- A remote attacker may be able to cause unexpected application termination or arbitrary code execution.

- An application may be able to execute arbitrary code with kernel privileges. (CVE-2021-30704)

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


Upgrade to macOS 11.4 or later.

See Also

Plugin Details

Severity: Critical

ID: 149986

File Name: macos_HT212529.nasl

Version: 1.15

Type: local

Agent: macosx

Published: 5/26/2021

Updated: 4/25/2023

Supported Sensors: Nessus Agent, Nessus

Risk Information


Risk Factor: High

Score: 7.4


Risk Factor: High

Base Score: 9.3

Temporal Score: 7.7

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

CVSS Score Source: CVE-2021-30740


Risk Factor: Critical

Base Score: 9.8

Temporal Score: 9.1

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

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

CVSS Score Source: CVE-2021-30678

Vulnerability Information

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/24/2021

Vulnerability Publication Date: 5/24/2021

CISA Known Exploited Vulnerability Due Dates: 11/17/2021

Reference Information

CVE: CVE-2020-36221, CVE-2020-36222, CVE-2020-36223, CVE-2020-36224, CVE-2020-36225, CVE-2020-36226, CVE-2020-36227, CVE-2020-36228, CVE-2020-36229, CVE-2020-36230, CVE-2021-21779, CVE-2021-23841, CVE-2021-30668, CVE-2021-30669, CVE-2021-30671, CVE-2021-30673, CVE-2021-30676, CVE-2021-30677, CVE-2021-30678, CVE-2021-30679, CVE-2021-30680, CVE-2021-30681, CVE-2021-30682, CVE-2021-30683, CVE-2021-30684, CVE-2021-30685, CVE-2021-30686, CVE-2021-30687, CVE-2021-30688, CVE-2021-30689, CVE-2021-30691, CVE-2021-30692, CVE-2021-30693, CVE-2021-30694, CVE-2021-30695, CVE-2021-30696, CVE-2021-30697, CVE-2021-30698, CVE-2021-30700, CVE-2021-30701, CVE-2021-30702, CVE-2021-30704, CVE-2021-30705, CVE-2021-30707, CVE-2021-30708, CVE-2021-30709, CVE-2021-30710, CVE-2021-30712, CVE-2021-30713, CVE-2021-30715, CVE-2021-30716, CVE-2021-30717, CVE-2021-30718, CVE-2021-30719, CVE-2021-30720, CVE-2021-30721, CVE-2021-30722, CVE-2021-30723, CVE-2021-30724, CVE-2021-30725, CVE-2021-30726, CVE-2021-30727, CVE-2021-30728, CVE-2021-30734, CVE-2021-30735, CVE-2021-30736, CVE-2021-30737, CVE-2021-30738, CVE-2021-30739, CVE-2021-30740, CVE-2021-30744, CVE-2021-30746, CVE-2021-30749

APPLE-SA: APPLE-SA-2021-05-25-2, HT212529

IAVA: 2021-A-0251-S, 2021-A-0349-S