What is CVE-2018-20068?

CVE-2018-20068 is a medium-severity vulnerability in Google Chrome, classified under Improper Input Validation. CVSS score: 4.3/10. Published 2019-01-09.

How severe is CVE-2018-20068?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Improper input validation in Google Chrome

CVE-2018-20068

Incorrect handling of 304 status codes in Navigation in Google Chrome prior to 71.0.3578.80 allowed a remote attacker to confuse the user about the origin of the current page via a crafted HTML page.

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

Published 2019-01-09 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.005 (38.4th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 38th percentile — 38.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Google Chrome — versions unspecified

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

Frequently asked questions

What is CVE-2018-20068?: CVE-2018-20068 is a medium-severity vulnerability in Google Chrome, classified under Improper Input Validation. CVSS score: 4.3/10. Published 2019-01-09.
How severe is CVE-2018-20068?: Medium severity. CVSS v3 base score is 4.3 out of 10.