CVE-2018-4111

MEDIUM

macOS < 10.13.4 - S/MIME Encrypted Message Content Exposure via HTML Email

Title source: llm
STIX 2.1

Description

An issue was discovered in certain Apple products. macOS before 10.13.4 is affected. The issue involves the "Mail" component. It allows man-in-the-middle attackers to read S/MIME encrypted message content by sending HTML e-mail that references remote resources but lacks a valid S/MIME signature.

References (3)

Core 3
Core References
Vendor Advisory x_refsource_confirm
https://support.apple.com/HT208692
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/103582
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1040608

Scores

CVSS v3 5.9
EPSS 0.0116
EPSS Percentile 63.0%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Details

CWE
CWE-347
Status published
Products (1)
apple/mac_os_x < 10.13.4
Published Apr 03, 2018
Tracked Since Feb 18, 2026