CVE-2016-9079

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.

Affected

Mozilla · Firefox · Firefox ESR · Thunderbird

CVSS v3.1 NVD

7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS v2.0 NVD

5.0 MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:N

EPSS

87.36% chance of exploitation in the next 30 days, 100th percentile

CISA KEV

added 2023-06-22

Published

2018-06-11

Updated

2025-10-21

Proof-of-concept exploits (4)

• https://bugzilla.mozilla.org/show_bug.cgi?id=1321066
• LakshmiDesai/CVE-2016-90791★ · 2016-12-07
• dangokyo/CVE-2016-90797★ · 2018-07-29
• soham23/firefox-rce-nssmil1★ · 2026-07-06

Metasploit modules (1)

• rapid7/metasploit-framework/blob/master/modules/exploits/windows/browser/firefox_smil_uaf…

ExploitDB entries (2)

• https://www.exploit-db.com/exploits/41151
• https://www.exploit-db.com/exploits/42327

Security advisories

• https://www.mozilla.org/security/advisories/mfsa2016-92
• http://rhn.redhat.com/errata/RHSA-2016-2843.html
• http://rhn.redhat.com/errata/RHSA-2016-2850.html
• http://www.securityfocus.com/bid/94591
• http://www.securitytracker.com/id/1037370
• https://security.gentoo.org/glsa/201701-15
• https://security.gentoo.org/glsa/201701-35
• https://www.debian.org/security/2016/dsa-3730

References

• CVE Record
• NVD entry

Related

• CVE-2016-8655
• CVE-2015-5119
• CVE-2017-16995
• CVE-2017-3000