Apple iOS < 12.4.2 Vulnerability

critical Nessus Plugin ID 129391
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.


The version of Apple iOS running on the mobile device is affected by a vulnerability.


The version of Apple iOS running on the mobile device is prior to 12.4.2. It is, therefore, affected by an out-of-bounds read vulnerability.
An attacker can exploit this to cause an application crash, or potentially achieve arbitrary code execution.


Upgrade to Apple iOS version 12.4.2 or later

See Also

Plugin Details

Severity: Critical

ID: 129391

File Name: apple_ios_1242_check.nbin

Version: 1.16

Type: local

Published: 9/27/2019

Updated: 12/20/2021

Dependencies: mdm_dependency_lock.nbin

Risk Information

CVSS Score Source: CVE-2019-8641


Risk Factor: High

Score: 8.4


Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

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

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


Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

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

Vulnerability Information

CPE: cpe:/o:apple:iphone_os

Required KB Items: mdm/dependency/unlocked

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/18/2019

Vulnerability Publication Date: 9/18/2019

Reference Information

CVE: CVE-2019-8641

APPLE-SA: APPLE-SA-2019-9-26