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Fencer Vulns
high 8.8

CVE-2016-1632 json

The Extensions subsystem in Google Chrome before 49.0.2623.75 does not properly maintain own properties, which allows remote attackers to b…

published 2016-03-06 10 y ago modified 2026-06-17 4 mo ago also EUVD-2016-2727

cvss
8.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.3%
EPSS 1.3% chance of exploitation in 30 days, percentile 71%
public exploits
0
none known

Summary

The Extensions subsystem in Google Chrome before 49.0.2623.75 does not properly maintain own properties, which allows remote attackers to bypass intended access restrictions via crafted JavaScript code that triggers an incorrect cast, related to extensions/renderer/v8_helpers.h and gin/converter.h.

Patch / fix

  • chromium-browser Ubuntu 14.04 LTS 49.0.2623.87-0ubuntu0.14.04.1.1112

ubuntu advisories UBUNTU-CVE-2016-1632

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 49.0.2623.75-1.el6

red hat advisories RHSA-2016:0359

  • 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-2016-1632 updated cvss 6.8

chromium-browser: bad cast in Extensions

  • Red Hat Enterprise Linux Desktop Supplementary (v. 6) chromium-browser 49.0.2623.75-1.el6 Red Hat Enterprise Linux Server Supplementary (v. 6) chromium-browser 49.0.2623.75-1.el6 Red Hat Enterprise Linux Workstation Supplementary (v. 6) chromium-browser 49.0.2623.75-1.el6
    fixed: vendor fix RHSA-2016:0359

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

1.35% chance of exploitation in the next 30 days, higher than 71% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 8.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-264 Permissions, Privileges, and Access Controls
Technology feeds

References

Sources

Fencer Vulns 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.