What is CVE-2016-5222?

CVE-2016-5222 is a medium-severity vulnerability in Google Chrome, classified under Improper Input Validation. CVSS score: 6.5/10. Published 2017-01-19.

How severe is CVE-2016-5222?

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

Improper input validation in Google Chrome

CVE-2016-5222

Incorrect handling of invalid URLs in Google Chrome prior to 55.0.2883.75 for Mac, Windows and Linux, and 55.0.2883.84 for Android allowed a remote attacker to spoof the contents of the Omnibox (URL bar) via a crafted HTML page.

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

Published 2017-01-19 · 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: 0.011 (64.7th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 64.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Google Chrome
Google Chrome Prior To 55.0.2883.75 For Mac, Windows And Linux, 55.0.2883.84 Android — versions Google Chrome prior to 55.0.2883.75 for Mac, Windows and Linux, and 55.0.2883.84 for Android

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

rhn.redhat.com/errata/RHSA-2016-2919.html (vendor-advisory)
crbug.com/657720
www.securityfocus.com/bid/94633 (vdb-entry)
chromereleases.googleblog.com/2016/12/stable-channel-update-for-desktop.html
security.gentoo.org/glsa/201612-11 (vendor-advisory)

Frequently asked questions

What is CVE-2016-5222?: CVE-2016-5222 is a medium-severity vulnerability in Google Chrome, classified under Improper Input Validation. CVSS score: 6.5/10. Published 2017-01-19.
How severe is CVE-2016-5222?: Medium severity. CVSS v3 base score is 6.5 out of 10.