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Fencer Intel
high 7.5

CVE-2015-0836 json

Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 36.0, Firefox ESR 31.x before 31.5, and Thunderbird be…

published 2015-02-25 11 y ago modified 2026-06-17 4 mo ago also EUVD-2015-0849

cvss
7.5
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.2%
EPSS 4.2% 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 36.0, Firefox ESR 31.x before 31.5, and Thunderbird before 31.5 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 Ubuntu 14.04 LTS 36.0+build2-0ubuntu0.14.04.4
  • thunderbird Ubuntu 14.04 LTS 1:31.5.0+build1-0ubuntu0.14.04.1

ubuntu advisories UBUNTU-CVE-2015-0836

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 7 31.5.0-2.ael7b_1
  • thunderbird RHEL 7 31.5.0-2.el7_1
  • thunderbird RHEL 7 31.5.0-2.ael7b_1
  • thunderbird RHEL 5 PRODUCTIVITY, RHEL 5 31.5.0-1.el5_11
  • thunderbird RHEL 6 31.5.0-1.el6_6
  • firefox RHEL 5 31.5.0-1.el5_11
  • firefox RHEL 6 31.5.0-1.el6_6
  • firefox RHEL 7 31.5.0-2.el7_0

red hat advisories RHSA-2015:0629RHSA-2015:0642RHSA-2015:0266RHSA-2015:0265

  • MozillaFirefox SLES for SAP 12, SLES 12, SLED 12 +1 more 31.5.0esr-24.1

suse advisories SUSE-SU-2015:0412-1

  • MozillaFirefox openSUSE Tumbleweed 50.1.0-1.1
  • MozillaThunderbird openSUSE Tumbleweed 45.5.1-1.1

opensuse advisories openSUSE-SU-2024:10071-1openSUSE-SU-2024:10230-1

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-2015-0836 updated cvss 6.8

Mozilla: Miscellaneous memory safety hazards (rv:31.5) (MFSA 2015-11)

  • Red Hat Enterprise Linux (v. 5 server) firefox 31.5.0-1.el5_11 Red Hat Enterprise Linux Client (v. 7) firefox 31.5.0-2.el7_0, xulrunner 31.5.0-1.el7_0, thunderbird 31.5.0-2.el7_1 Red Hat Enterprise Linux Client Optional (v. 7) firefox 31.5.0-2.el7_0 Red Hat Enterprise Linux ComputeNode Optional (v. 7) xulrunner 31.5.0-1.el7_0 Red Hat Enterprise Linux Desktop (v. 5 client) firefox 31.5.0-1.el5_11, thunderbird 31.5.0-1.el5_11 Red Hat Enterprise Linux Desktop (v. 6) firefox 31.5.0-1.el6_6, thunderbird 31.5.0-1.el6_6
    +2 more products
    Red Hat Enterprise Linux Desktop Optional (v. 6) firefox 31.5.0-1.el6_6 Red Hat Enterprise Linux HPC Node Optional (v. 6) firefox 31.5.0-1.el6_6
    fixed: vendor fix RHSA-2015:0265
  • Red Hat Enterprise Linux Optional Productivity Applications (v. 5 server) thunderbird 31.5.0-1.el5_11
    fixed: vendor fix RHSA-2015:0266
  • Red Hat Enterprise Linux Server (v. 6) firefox 31.5.0-1.el6_6 Red Hat Enterprise Linux Server (v. 7) firefox 31.5.0-2.el7_0, firefox 31.5.0-2.ael7b_1, xulrunner 31.5.0-1.el7_0 Red Hat Enterprise Linux Server Optional (v. 6) firefox 31.5.0-1.el6_6, thunderbird 31.5.0-1.el6_6 Red Hat Enterprise Linux Server Optional (v. 7) firefox 31.5.0-2.el7_0, xulrunner 31.5.0-1.el7_0, thunderbird 31.5.0-2.el7_1, thunderbird 31.5.0-2.ael7b_1 Red Hat Enterprise Linux Workstation (v. 6) firefox 31.5.0-1.el6_6, thunderbird 31.5.0-1.el6_6 Red Hat Enterprise Linux Workstation (v. 7) firefox 31.5.0-2.el7_0, xulrunner 31.5.0-1.el7_0, thunderbird 31.5.0-2.el7_1
    +2 more products
    Red Hat Enterprise Linux Workstation Optional (v. 6) firefox 31.5.0-1.el6_6 Red Hat Enterprise Linux Workstation Optional (v. 7) firefox 31.5.0-2.el7_0
    fixed: vendor fix RHSA-2015:0265

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

4.19% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

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.