An issue was discovered in certain Apple products. iOS before 11.4 is affected. macOS before 10.13.5 is affected. The issue involves the "Mail" component. It allows remote attackers to read the cleartext content of S/MIME encrypted messages via direct exfiltration.

The version of Apple iOS running on the mobile device is prior to 11.4. It is, therefore, affected by multiple vulnerabilities.

The remote host is running a version of macOS / Mac OS X that is 10.13.x prior to 10.13.5. It is, therefore, affected by multiple vulnerabilities.

Note that successful exploitation of the most serious issues can result in arbitrary code execution.

ID	Name	Product	Family	Severity
700550	Apple iOS < 11.4 Multiple Vulnerabilities (EFAIL)	Nessus Network Monitor	Mobile Devices	high
700516	macOS 10.13.x < 10.13.5 Multiple Vulnerabilities	Nessus Network Monitor	Operating System Detection	critical
110398	Apple iOS < 11.4 Multiple Vulnerabilities (EFAIL)	Nessus	Mobile Devices	high
110324	macOS 10.13.x < 10.13.5 Multiple Vulnerabilities	Nessus	MacOS X Local Security Checks	critical

Detections

Analytics

CVE-2018-4227

high

Tenable Plugins

high

critical

high

critical