CVE-2018-4221

HighCVSS 7.5/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.0 7.5/10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-200

Affected software

No affected versions have been published.

Timeline

Published
Jun 8, 2018
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2018-4221: High severity, CVSS 7.5 | Vulnix