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CVE-2018-6056

31
FAUCET Score

CVE-2018-6056 is a type confusion vulnerability in the V8 JavaScript engine of Google Chrome, affecting versions prior to 64.0.3282.168, as well as Debian and Red Hat distributions. This flaw allows a remote attacker to achieve a heap out-of-bounds write via a crafted HTML page, potentially leading to arbitrary code execution within the browser's sandbox. Rated 8.8 HIGH on CVSS, it has a low attack complexity and requires user interaction (visiting a malicious page) for exploitation, with high impacts on confidentiality, integrity, and availability. While no public exploits or Metasploit modules are available, and it's not in CISA's KEV catalog, it has garnered some community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 64.0.3282.168CPE matchmatch criteria
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
8.79%
Probability of exploitation in next 30 days
EPSS Percentile
94.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0879 is in the 94th percentile among its peer group of 14,875 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6 SupplementaryFixed in: chromium-browser-0:64.0.3282.167-1.el6_9
View patch

Vendor Advisories (1)

redhatCVE-2018-6056Important

chromium-browser: incorrect derived class instantiation in v8

Feb 13, 2018

References

access.redhat.com / errata/RHSA-2018:0334
chromereleases.googleblog.com / 2018/02/stable-channel-update-for-desktop_13.html
crbug.com / 806388
debian.org / security/2018/dsa-4182
securityfocus.com / bid/103003