What is CVE-2018-17472?

CVE-2018-17472 is a critical-severity vulnerability in Apple Iphone OS, classified under Improper Input Validation. CVSS score: 9.6/10. Published 2018-11-14.

How severe is CVE-2018-17472?

Critical severity. CVSS v3 base score is 9.6 out of 10.

Improper input validation in Apple Iphone OS

CVE-2018-17472

Incorrect handling of googlechrome:// URL scheme on iOS in Intents in Google Chrome prior to 70.0.3538.67 allowed a remote attacker to escape the <iframe> sandbox via a crafted HTML page.

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

Published 2018-11-14 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.015 (73.1th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 73rd percentile — 73.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000

Affected products

Apple Iphone OS
Google Chrome — versions unspecified
Debian Linux — versions 9.0
Red Hat Enterprise Linux Desktop — versions 6.0
Red Hat Enterprise Linux Server — versions 6.0
Red Hat Enterprise Linux Workstation — versions 6.0

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

crbug.com/822518
security.gentoo.org/glsa/201811-10 (vendor-advisory)
chromereleases.googleblog.com/2018/10/stable-channel-update-for-desktop.html
www.securityfocus.com/bid/105666 (vdb-entry)

Frequently asked questions

What is CVE-2018-17472?: CVE-2018-17472 is a critical-severity vulnerability in Apple Iphone OS, classified under Improper Input Validation. CVSS score: 9.6/10. Published 2018-11-14.
How severe is CVE-2018-17472?: Critical severity. CVSS v3 base score is 9.6 out of 10.