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Fencer Intel
high 8.8

CVE-2016-2836 json

Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 48.0 and Firefox ESR 45.x before 45.3 allow remote att…

published 2016-08-05 10 y ago modified 2026-06-17 4 mo ago also EUVD-2016-3909

cvss
8.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.9%
EPSS 2.9% chance of exploitation in 30 days, percentile 86%
public exploits
0
none known

Summary

Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 48.0 and Firefox ESR 45.x before 45.3 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via vectors related to Http2Session::Shutdown and SpdySession31::Shutdown, and other vectors.

Patch / fix

  • firefox-esr Debian 14, Debian 13, Debian 12 45.3.0esr-1

debian advisories DEBIAN-CVE-2016-2836

  • firefox Ubuntu 14.04 LTS 48.0+build2-0ubuntu0.14.04.1
  • firefox Ubuntu 16.04 LTS 48.0+build2-0ubuntu0.16.04.1
  • thunderbird Ubuntu 14.04 LTS 1:45.3.0+build1-0ubuntu0.14.04.4
  • thunderbird Ubuntu 16.04 LTS 1:45.3.0+build1-0ubuntu0.16.04.2

ubuntu advisories UBUNTU-CVE-2016-2836

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

  • thunderbird RHEL 5 PRODUCTIVITY, RHEL 5 45.3.0-1.el5_11
  • thunderbird RHEL 6 45.3.0-1.el6_8
  • thunderbird RHEL 7 45.3.0-1.el7_2
  • firefox RHEL 5 45.3.0-1.el5_11
  • firefox RHEL 6 45.3.0-1.el6_8
  • firefox RHEL 7 45.3.0-1.el7_2

red hat advisories RHSA-2016:1809RHSA-2016:1551

  • MozillaFirefox SLES for SAP 11 SP4, SLES 11 SP4, SLES 11 SP3-TERADATA +6 more 45.3.0esr-50.1
  • MozillaFirefox SLES for SAP 12 SP1, SLES for SAP 12, SLES 12-LTSS +3 more 45.3.0esr-78.1
  • mozilla-nss SLES 11 SP2-LTSS 3.21.1-26.2
  • mozilla-nspr SLES 11 SP2-LTSS 4.12-25.2
  • MozillaFirefox SLES 11 SP2-LTSS 45.3.0esr-48.1
  • firefox-fontconfig SLES 11 SP2-LTSS 2.11.0-4.2
  • MozillaFirefox-branding-SLED SLES 11 SP2-LTSS 45.0-20.38

suse advisories SUSE-SU-2016:2195-1SUSE-SU-2016:2131-1SUSE-SU-2016:2061-1

  • MozillaFirefox openSUSE Tumbleweed 50.1.0-1.1
  • MozillaThunderbird openSUSE Tumbleweed 45.5.1-1.1
  • MozillaThunderbird Package Hub 12 45.3.0-9.1

opensuse advisories openSUSE-SU-2024:10071-1openSUSE-SU-2024:10230-1openSUSE-SU-2016:2253-1openSUSE-SU-2016:2254-1

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-2016-2836 updated cvss 8.8

Mozilla: Miscellaneous memory safety hazards (rv:45.3) (MFSA 2016-62)

  • Red Hat Enterprise Linux (v. 5 server) firefox 45.3.0-1.el5_11 Red Hat Enterprise Linux Client (v. 7) firefox 45.3.0-1.el7_2, thunderbird 45.3.0-1.el7_2 Red Hat Enterprise Linux Client Optional (v. 7) firefox 45.3.0-1.el7_2 Red Hat Enterprise Linux Desktop (v. 5 client) firefox 45.3.0-1.el5_11, thunderbird 45.3.0-1.el5_11 Red Hat Enterprise Linux Desktop (v. 6) firefox 45.3.0-1.el6_8, thunderbird 45.3.0-1.el6_8 Red Hat Enterprise Linux Desktop Optional (v. 6) firefox 45.3.0-1.el6_8
    +1 more products
    Red Hat Enterprise Linux HPC Node Optional (v. 6) firefox 45.3.0-1.el6_8
    fixed: vendor fix RHSA-2016:1551
  • Red Hat Enterprise Linux Optional Productivity Applications (v. 5 server) thunderbird 45.3.0-1.el5_11
    fixed: vendor fix RHSA-2016:1809
  • Red Hat Enterprise Linux Server (v. 6) firefox 45.3.0-1.el6_8 Red Hat Enterprise Linux Server (v. 7) firefox 45.3.0-1.el7_2 Red Hat Enterprise Linux Server Optional (v. 6) firefox 45.3.0-1.el6_8, thunderbird 45.3.0-1.el6_8 Red Hat Enterprise Linux Server Optional (v. 7) firefox 45.3.0-1.el7_2, thunderbird 45.3.0-1.el7_2 Red Hat Enterprise Linux Workstation (v. 6) firefox 45.3.0-1.el6_8, thunderbird 45.3.0-1.el6_8 Red Hat Enterprise Linux Workstation (v. 7) firefox 45.3.0-1.el7_2, thunderbird 45.3.0-1.el7_2
    +2 more products
    Red Hat Enterprise Linux Workstation Optional (v. 6) firefox 45.3.0-1.el6_8 Red Hat Enterprise Linux Workstation Optional (v. 7) firefox 45.3.0-1.el7_2
    fixed: vendor fix RHSA-2016:1551

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

2.89% chance of exploitation in the next 30 days, higher than 86% 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-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

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.