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CVE-2018-6122

28
FAUCET Score

CVE-2018-6122 describes a type confusion vulnerability in WebAssembly within Google Chrome versions prior to 66.0.3359.139. This flaw allowed a remote attacker to potentially exploit heap corruption through a specially crafted HTML page. It carries a high CVSS score of 8.8, indicating a critical risk due to its network attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. While not listed in CISA's KEV catalog, there is some community discussion and media coverage, though no public exploit code (Metasploit, Nuclei, ExploitDB) is currently available.

Impacted Technologies

VendorProductVersion(s)CPE
< 66.0.3359.139CPE matchmatch criteria
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

CVSS:3.1/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
3.1

Exploit Intelligence

EPSS Score
0.72%
Probability of exploitation in next 30 days
EPSS Percentile
50.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0072 is in the 52nd percentile among its peer group of 14,855 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-0:66.0.3359.170-1.el6_9
View patch

Vendor Advisories (1)

redhatCVE-2018-6122Important

chromium-browser: Type confusion in V8

May 10, 2018

References

crbug.com / 836141
Third Party Advisory