AUGUST 4, 2026
Live Feed
Back to database
Case File

CVE-2018-4221

HIGH · CVSS 7.5 EPSS 1.26%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2018-06-08 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

CVE
CVE-2018-4221
Severity
HIGH
CVSS
7.5
EPSS
1.26%

Original NVD Description

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 "Security" component. It allows web sites to track users by leveraging the transmission of S/MIME client certificates.