Skip to content
Fencer Intel
high 8.8

CVE-2018-6151 json

Bad cast in DevTools in Google Chrome on Win, Linux, Mac, Chrome OS prior to 66.0.3359.117 allowed an attacker who convinced a user to inst…

published 2019-01-09 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-17914

cvss
8.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.2%
EPSS 1.2% chance of exploitation in 30 days, percentile 68%
public exploits
0
none known

Summary

Bad cast in DevTools in Google Chrome on Win, Linux, Mac, Chrome OS prior to 66.0.3359.117 allowed an attacker who convinced a user to install a malicious extension to perform an out of bounds memory read via a crafted Chrome Extension.

Patch / fix

  • Google Chrome 66.0.3359.117
  • chromium-browser Ubuntu 16.04 LTS 68.0.3440.75-0ubuntu0.16.04.1
  • chromium-browser Ubuntu 18.04 LTS 68.0.3440.75-0ubuntu0.18.04.1

ubuntu advisories UBUNTU-CVE-2018-6151

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • chromium-browser RHEL 6 EXTRAS 68.0.3440.75-1.el6_10

red hat advisories RHSA-2018:2282

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2018-6151 updated cvss 6.5

chromium-browser: Bad cast in DevTools

  • Red Hat Enterprise Linux Desktop Supplementary (v. 6) chromium-browser 68.0.3440.75-1.el6_10 Red Hat Enterprise Linux Server Supplementary (v. 6) chromium-browser 68.0.3440.75-1.el6_10 Red Hat Enterprise Linux Workstation Supplementary (v. 6) chromium-browser 68.0.3440.75-1.el6_10
    fixed: vendor fix RHSA-2018:2282

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.21% chance of exploitation in the next 30 days, higher than 68% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 8.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Affected products

  • Google Chrome

Classification

Weakness
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.