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CVE-2016-5201

22
FAUCET Score

CVE-2016-5201 describes a privateClass leak in the Google Chrome extensions API, affecting versions prior to 54.0.2840.100 on Linux, 54.0.2840.99 on Windows, and 54.0.2840.98 on Mac. This medium-severity vulnerability (CVSS 6.5) allows a remote attacker to access privileged JavaScript code by enticing a user to visit a crafted HTML page, potentially leading to high confidentiality impact. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered some community discussion and media coverage, indicating awareness.

Impacted Technologies

VendorProductVersion(s)CPE
<= 54.0.2840.87CPE matchmatch criteria
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*

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
1.20%
Probability of exploitation in next 30 days
EPSS Percentile
64.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0120 is in the 78th percentile among its peer group of 26,208 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-0:54.0.2840.100-1.el6
View patch

Vendor Advisories (1)

redhatCVE-2016-5201Moderate

chromium-browser: info leak in extensions

Nov 9, 2016

References

rhn.redhat.com / errata/RHSA-2016-2718.html
chromereleases.googleblog.com / 2016/11/stable-channel-update-for-desktop_9.html
crbug.com / 660678
security.gentoo.org / glsa/201611-16
securityfocus.com / bid/94196
securitytracker.com / id/1037273