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Fencer Intel
medium 6.5

CVE-2016-5201 json

A leak of privateClass in the extensions API in Google Chrome prior to 54.0.2840.100 for Linux, and 54.0.2840.99 for Windows, and 54.0.2840…

published 2017-01-19 9 y ago modified 2026-06-17 4 mo ago also EUVD-2016-6152

cvss
6.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.2%
EPSS 1.2% chance of exploitation in 30 days, percentile 68%
public exploits
0
none known

Summary

A leak of privateClass in the extensions API in Google Chrome prior to 54.0.2840.100 for Linux, and 54.0.2840.99 for Windows, and 54.0.2840.98 for Mac allowed a remote attacker to access privileged JavaScript code via a crafted HTML page.

Patch / fix

  • chromium-browser Ubuntu 14.04 LTS 58.0.3029.81-0ubuntu0.14.04.1172
  • chromium-browser Ubuntu 16.04 LTS 55.0.2883.87-0ubuntu0.16.04.1263

ubuntu advisories UBUNTU-CVE-2016-5201

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • chromium-browser RHEL 6 EXTRAS 54.0.2840.100-1.el6

red hat advisories RHSA-2016:2718

  • chromium openSUSE Tumbleweed 55.0.2883.75-3.1
  • chromium openSUSE Tumbleweed 113.0.5672.92-1.1

opensuse advisories openSUSE-SU-2024:10171-1openSUSE-SU-2024:12948-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2016-5201 updated cvss 6.5

chromium-browser: info leak in extensions

  • Red Hat Enterprise Linux Desktop Supplementary (v. 6) chromium-browser 54.0.2840.100-1.el6 Red Hat Enterprise Linux Server Supplementary (v. 6) chromium-browser 54.0.2840.100-1.el6 Red Hat Enterprise Linux Workstation Supplementary (v. 6) chromium-browser 54.0.2840.100-1.el6
    fixed: vendor fix RHSA-2016:2718

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.20% chance of exploitation in the next 30 days, higher than 68% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 6.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:P/I:N/A:N

Affected products

  • n/a Google Chrome prior to 54.0.2840.100 for Linux, and 54.0.2840.99 for Windows, and 54.0.2840.98 for Mac

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.