What is CVE-2018-4116?

CVE-2018-4116 is a medium-severity vulnerability in Apple Safari, classified under Improper Input Validation. CVSS score: 6.5/10. Published 2018-04-03.

How severe is CVE-2018-4116?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Improper input validation in Apple Safari

CVE-2018-4116

An issue was discovered in certain Apple products. Safari before 11.1 is affected. The issue involves the "Safari" component. It allows remote attackers to spoof the address bar via a crafted web site.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2018-04-03 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.012 (67.2th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 67th percentile — 67.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: -0.000

Affected products

Apple Safari

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

www.securitytracker.com/id/1040606 (VDB Entry, Third Party Advisory, vdb-entry)
support.apple.com/HT208695 (Vendor Advisory)

Frequently asked questions

What is CVE-2018-4116?: CVE-2018-4116 is a medium-severity vulnerability in Apple Safari, classified under Improper Input Validation. CVSS score: 6.5/10. Published 2018-04-03.
How severe is CVE-2018-4116?: Medium severity. CVSS v3 base score is 6.5 out of 10.