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CVE-2018-18349

22
FAUCET Score

CVE-2018-18349 describes a vulnerability in Google Chrome prior to version 71.0.3578.80, where remote frame navigations could improperly access local resources. This flaw allowed an attacker to access local file system data if a user was convinced to install a malicious Chrome Extension. With a CVSS score of 6.5 (Medium), this vulnerability requires user interaction (UI:R) and has a high confidentiality impact (C:H) if exploited. While not listed in CISA's KEV catalog and lacking public exploit code in Metasploit, Nuclei, or ExploitDB, it has garnered some community discussion and media coverage, indicating awareness within the cybersecurity community.

Impacted Technologies

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

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.98%
Probability of exploitation in next 30 days
EPSS Percentile
58.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0098 is in the 71st percentile among its peer group of 26,236 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-2018-18349Moderate

chromium-browser: Insufficient policy enforcement in Blink

Dec 4, 2018

References

access.redhat.com / errata/RHSA-2018:3803
chromereleases.googleblog.com / 2018/12/stable-channel-update-for-desktop.html
crbug.com / 894399
security.gentoo.org / glsa/201908-18
debian.org / security/2018/dsa-4352
securityfocus.com / bid/106084