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Fencer Vulns
high 8.8

CVE-2016-2806 json

Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 46.0 and Firefox ESR 45.x before 45.1 allow remote att…

published 2016-04-30 10 y ago modified 2026-06-17 4 mo ago also EUVD-2016-3879

cvss
8.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.7%
EPSS 4.7% chance of exploitation in 30 days, percentile 91%
public exploits
0
none known

Summary

Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 46.0 and Firefox ESR 45.x before 45.1 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors.

Patch / fix

  • firefox-esr Debian 14, Debian 13, Debian 12 45.1.0esr-1

debian advisories DEBIAN-CVE-2016-2806

  • firefox Ubuntu 14.04 LTS 46.0+build5-0ubuntu0.14.04.2
  • firefox Ubuntu 16.04 LTS 46.0+build5-0ubuntu0.16.04.2

ubuntu advisories UBUNTU-CVE-2016-2806

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

  • firefox RHEL 5 45.1.0-1.el5_11
  • firefox RHEL 6 45.1.0-1.el6_7
  • firefox RHEL 7 45.1.0-1.el7_2

red hat advisories RHSA-2016:0695

  • MozillaFirefox openSUSE Tumbleweed 50.1.0-1.1
  • MozillaThunderbird openSUSE Tumbleweed 45.5.1-1.1
  • MozillaThunderbird Package Hub 12 45.2-6.1

opensuse advisories openSUSE-SU-2024:10071-1openSUSE-SU-2024:10230-1openSUSE-SU-2016:1769-1openSUSE-SU-2016:1778-1

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-2016-2806 updated cvss 6.8

Mozilla: Miscellaneous memory safety hazards (rv:46.0 / rv:45.1) (MFSA 2016-39)

  • Red Hat Enterprise Linux (v. 5 server) firefox 45.1.0-1.el5_11 Red Hat Enterprise Linux Client (v. 7) firefox 45.1.0-1.el7_2 Red Hat Enterprise Linux Client Optional (v. 7) firefox 45.1.0-1.el7_2 Red Hat Enterprise Linux Desktop (v. 5 client) firefox 45.1.0-1.el5_11 Red Hat Enterprise Linux Desktop (v. 6) firefox 45.1.0-1.el6_7 Red Hat Enterprise Linux Desktop Optional (v. 6) firefox 45.1.0-1.el6_7
    +9 more products
    Red Hat Enterprise Linux HPC Node Optional (v. 6) firefox 45.1.0-1.el6_7 Red Hat Enterprise Linux Server (v. 6) firefox 45.1.0-1.el6_7 Red Hat Enterprise Linux Server (v. 7) firefox 45.1.0-1.el7_2 Red Hat Enterprise Linux Server Optional (v. 6) firefox 45.1.0-1.el6_7 Red Hat Enterprise Linux Server Optional (v. 7) firefox 45.1.0-1.el7_2 Red Hat Enterprise Linux Workstation (v. 6) firefox 45.1.0-1.el6_7 Red Hat Enterprise Linux Workstation (v. 7) firefox 45.1.0-1.el7_2 Red Hat Enterprise Linux Workstation Optional (v. 6) firefox 45.1.0-1.el6_7 Red Hat Enterprise Linux Workstation Optional (v. 7) firefox 45.1.0-1.el7_2
    fixed: vendor fix RHSA-2016:0695

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

4.69% chance of exploitation in the next 30 days, higher than 91% 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 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

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.