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TI-2016-07433 Aliases CVE-2016-9079GHSA-cmgc-v5fc-wx68

Use after free in Mozilla Firefox

Priority CRITICAL 90Exploited in the wildCWE-416Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat.

Summary

A use-after-free vulnerability in SVG Animation has been discovered. An exploit built on this vulnerability has been discovered in the wild targeting Firefox and Tor Browser users on Windows. This vulnerability affects Firefox < 50.0.2, Firefox ESR < 45.5.1, and Thunderbird < 45.5.1.

Why it matters now

Exploitation Active In CISA KEV since 2023-06-22CISA due date 2023-07-13
EPSS 0.87357 99th percentileScored 2026-11-07
Public exploit Yes 3 exploit referencesTagged by the CNA and NVD
Fix Fixed Firefox (Mozilla): 50.0.2Firefox ESR (Mozilla): 45.5.1+1 more productRed Hat: 2 advisories

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Active
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MozillaFirefoxbefore 50.0.250.0.2Patch availableCNA
MozillaFirefox ESRbefore 45.5.145.5.1Patch availableCNA
MozillaThunderbirdbefore 45.5.145.5.1Patch availableCNA
  • Firefox VendorMozilla Affected before 50.0.2 Fixed in 50.0.2 Patch available CNA
  • Firefox ESR VendorMozilla Affected before 45.5.1 Fixed in 45.5.1 Patch available CNA
  • Thunderbird VendorMozilla Affected before 45.5.1 Fixed in 45.5.1 Patch available CNA

CPE configurations NVD · 23

CPEVersionsRoleVendor
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*9.0VulnerableDebian
cpe:2.3:o:redhat:enterprise_linux:5.0:*:*:*:*:*:*:*5.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_desktop:5.0:*:*:*:*:*:*:*5.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:5.0:*:*:*:*:*:*:*5.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
  • cpe:2.3:o:redhat:enterprise_linux:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_desktop:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
Show 13 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:*7.3VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:*7.4VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.3:*:*:*:*:*:*:*7.3VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.4:*:*:*:*:*:*:*7.4VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:*7.5VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_workstation:5.0:*:*:*:*:*:*:*5.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*before 45.5.1VulnerableMozilla
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*not specified by NVDRunning onMicrosoft
cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*before 50.0.2VulnerableMozilla
cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*before 45.5.1VulnerableMozilla
cpe:2.3:a:torproject:tor:-:*:*:*:*:*:*:*not specified by NVDVulnerabletorproject
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:* Versions 7.3 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:* Versions 7.4 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_eus:7.3:*:*:*:*:*:*:* Versions 7.3 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_eus:7.4:*:*:*:*:*:*:* Versions 7.4 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:* Versions 7.5 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* Versions before 45.5.1 Vulnerable ·Mozilla
  • cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
  • cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:* Versions before 50.0.2 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:* Versions before 45.5.1 Vulnerable ·Mozilla
  • cpe:2.3:a:torproject:tor:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·torproject

Remediation

  • Fix · CNA Firefox (Mozilla) Fixed in 50.0.2
  • Fix · CNA Firefox ESR (Mozilla) Fixed in 45.5.1
  • Fix · CNA Thunderbird (Mozilla) Fixed in 45.5.1

Red Hat 2 advisories

  • RHSA-2016:2850 Released 2016-12-05 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux Client (v. 7) thunderbird-45.5.1-1.el7_3
    • Red Hat Enterprise Linux Desktop (v. 5 client) thunderbird-45.5.1-1.el5_11, thunderbird-45.5.1-1.el5_11.i386
    • Red Hat Enterprise Linux Desktop (v. 6) thunderbird-45.5.1-1.el6_8
    • Red Hat Enterprise Linux Optional Productivity Applications (v. 5 server) thunderbird-45.5.1-1.el5_11, thunderbird-45.5.1-1.el5_11.i386
    • Red Hat Enterprise Linux Server Optional (v. 6) thunderbird-45.5.1-1.el6_8
    • Red Hat Enterprise Linux Server Optional (v. 7) thunderbird-45.5.1-1.el7_3
    • Red Hat Enterprise Linux Workstation (v. 6) thunderbird-45.5.1-1.el6_8
    • Red Hat Enterprise Linux Workstation (v. 7) thunderbird-45.5.1-1.el7_3
  • RHSA-2016:2843 Released 2016-12-01 · Red Hat rating Critical
    firefox security update
    • Red Hat Enterprise Linux (v. 5 server) firefox-45.5.1-1.el5_11, firefox-45.5.1-1.el5_11.i386
    • Red Hat Enterprise Linux Client (v. 7) firefox-45.5.1-1.el7_3
    • Red Hat Enterprise Linux Client Optional (v. 7) firefox-45.5.1-1.el7_3
    • Red Hat Enterprise Linux Desktop (v. 5 client) firefox-45.5.1-1.el5_11, firefox-45.5.1-1.el5_11.i386
    • Red Hat Enterprise Linux Desktop (v. 6) firefox-45.5.1-1.el6_8
    • Red Hat Enterprise Linux Desktop Optional (v. 6) firefox-45.5.1-1.el6_8
    • Red Hat Enterprise Linux HPC Node Optional (v. 6) firefox-45.5.1-1.el6_8
    • Red Hat Enterprise Linux Server (v. 6) firefox-45.5.1-1.el6_8
    • Red Hat Enterprise Linux Server (v. 7) firefox-45.5.1-1.el7_3
    • Red Hat Enterprise Linux Server Optional (v. 6) firefox-45.5.1-1.el6_8, firefox-45.5.1-1.el6_8.ppc
    • Red Hat Enterprise Linux Server Optional (v. 7) firefox-45.5.1-1.el7_3, firefox-45.5.1-1.el7_3.ppc
    • Red Hat Enterprise Linux Workstation (v. 6) firefox-45.5.1-1.el6_8
    • Red Hat Enterprise Linux Workstation (v. 7) firefox-45.5.1-1.el7_3
    • Red Hat Enterprise Linux Workstation Optional (v. 6) firefox-45.5.1-1.el6_8
    • Red Hat Enterprise Linux Workstation Optional (v. 7) firefox-45.5.1-1.el7_3

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    Mozilla Firefox, Firefox ESR, Thunderbird — DSA-3730

    7 records Highest priority Priority CRITICAL 1 CRITICAL, 3 MEDIUM, 3 LOW

    Other records, highest priority first

    • TI-2016-04593 Integer overflow in Mozilla ThunderbirdPriority MEDIUM 48
    • TI-2016-04586 Memory corruption in Mozilla ThunderbirdPriority MEDIUM 48
    • TI-2016-07420 Memory corruption in Mozilla ThunderbirdPriority MEDIUM 47
    Show all 7 records → Advisory →

Vendor assessments

Red Hat

Red Hat rating: Critical. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux (v. 5 server)Fixed RHSA-2016:2843
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2016:2843, RHSA-2016:2850
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2016:2843
Red Hat Enterprise Linux Desktop (v. 5 client)Fixed RHSA-2016:2843, RHSA-2016:2850
Red Hat Enterprise Linux Desktop (v. 6)Fixed RHSA-2016:2843, RHSA-2016:2850
Red Hat Enterprise Linux Desktop Optional (v. 6)Fixed RHSA-2016:2843
Red Hat Enterprise Linux HPC Node Optional (v. 6)Fixed RHSA-2016:2843
Red Hat Enterprise Linux Optional Productivity Applications (v. 5 server)Fixed RHSA-2016:2850
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2016:2843
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2016:2843
Red Hat Enterprise Linux Server Optional (v. 6)Fixed RHSA-2016:2843, RHSA-2016:2850
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2016:2843, RHSA-2016:2850
Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2016:2843, RHSA-2016:2850
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2016:2843, RHSA-2016:2850
Red Hat Enterprise Linux Workstation Optional (v. 6)Fixed RHSA-2016:2843
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2016:2843

Timeline

  1. 2023-06-22 Added to CISA KEV
  2. 2026-10-02 Threatist record created from CVE-2016-9079
  3. 2026-10-03 Alias added: GHSA-cmgc-v5fc-wx68

References

Exploit 3

Advisory 6

  • TI-2024-08981 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.8
  • TI-2022-09832 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.6
  • TI-2019-08769 Improper input validation in Mozilla Firefox ESR KEVCVSS 3.1CRITICAL 10.0
  • TI-2010-03577 Mozilla Firefox 3.5.x through 3.5.14 and 3.6.x through 3.6.11, Thunderbird 3.1.6 before… KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-04799 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
  • TI-2023-04477 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
See all 3444 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences