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Fencer Intel
high 8.8

CVE-2016-1631 json

The PPB_Flash_MessageLoop_Impl::InternalRun function in content/renderer/pepper/ppb_flash_message_loop_impl.cc in the Pepper plugin in Goog…

published 2016-03-06 10 y ago modified 2026-06-17 4 mo ago also EUVD-2016-2726

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 PPB_Flash_MessageLoop_Impl::InternalRun function in content/renderer/pepper/ppb_flash_message_loop_impl.cc in the Pepper plugin in Google Chrome before 49.0.2623.75 mishandles nested message loops, which allows remote attackers to bypass the Same Origin Policy via a crafted web site.

Patch / fix

  • oxide-qt Ubuntu 14.04 LTS 1.13.6-0ubuntu0.14.04.1
  • chromium-browser Ubuntu 14.04 LTS 49.0.2623.87-0ubuntu0.14.04.1.1112

ubuntu advisories UBUNTU-CVE-2016-1631

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-2016-1631 updated cvss 6.8

chromium-browser: same-origin bypass in Pepper Plugin

  • 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

1.33% chance of exploitation in the next 30 days, higher than 71% of all scored CVEs (FIRST EPSS, 2026-11-09).

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 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.