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CVE-2018-18357

18
FAUCET Score

CVE-2018-18357 is a medium-severity vulnerability affecting Google Chrome prior to version 71.0.3578.80, as well as Debian and Red Hat distributions. It stems from incorrect handling of confusable characters in the URL Formatter, enabling a remote attacker to spoof the Omnibox (URL bar) through a crafted domain name. The attack requires user interaction (UI:R) but has low impact on integrity (I:L) and no impact on confidentiality or availability. There is no evidence of active exploitation, no public exploit code (Metasploit, Nuclei, ExploitDB), and minimal community discussion or media coverage, indicating low current threat.

Impacted Technologies

VendorProductVersion(s)CPE
< 71.0.3578.80CPE matchmatch criteria
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
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:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

4.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
1.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.15%
Probability of exploitation in next 30 days
EPSS Percentile
63.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0115 is in the 76th percentile among its peer group of 26,234 CVEs.

Social Chatter

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

Media Mentions

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

Remediation

Patch Available

Vendor Patches (1)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6 SupplementaryFixed in: chromium-browser-0:71.0.3578.80-1.el6_10
View patch

Vendor Advisories (1)

redhatCVE-2018-18357Moderate

chromium-browser: Insufficient policy enforcement in URL Formatter

Dec 4, 2018

References

access.redhat.com / errata/RHSA-2018:3803
chromereleases.googleblog.com / 2018/12/stable-channel-update-for-desktop.html
crbug.com / 895207
security.gentoo.org / glsa/201908-18
debian.org / security/2018/dsa-4352
securityfocus.com / bid/106084