macOS 11.x < 11.3.1 Multiple Vulnerabilities (HT212335)

high Nessus Plugin ID 149333


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

- An integer overflow was addressed with improved input validation (CVE-2021-30663).

- A memory corruption issue was addressed with improved state management (CVE-2021-30666).

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 11.3.1 or later.

See Also

Plugin Details

Severity: High

ID: 149333

File Name: macos_HT212335.nasl

Version: 1.8

Type: local

Agent: macosx

Published: 5/7/2021

Updated: 1/21/2022

Supported Sensors: Nessus Agent

Risk Information


Risk Factor: High

Score: 8.4


Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.9

Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Temporal Vector: E:H/RL:OF/RC:C

CVSS Score Source: CVE-2021-30663


Risk Factor: High

Base Score: 8.8

Temporal Score: 8.4

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

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

Vulnerability Information

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/3/2021

Vulnerability Publication Date: 5/3/2021

CISA Known Exploited Dates: 11/17/2021

Reference Information

CVE: CVE-2021-30663

APPLE-SA: HT212335, APPLE-SA-2021-05-03-4

IAVA: 2021-A-0212-S