{"id":"CVE-2016-9079","url":"https://www.cyber-defence.io/tools/cve/CVE-2016-9079","generatedAt":"2026-10-28T20:05:27.582Z","title":"Mozilla Firefox, Firefox ESR, and Thunderbird Use-After-Free Vulnerability","description":"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.","published":"2018-06-11T21:29:02.000Z","lastModified":"2026-06-17T00:55:29.000Z","status":"Analyzed","sourceIdentifier":"security@mozilla.org","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},"cwe":["CWE-416"],"affected":["debian/debian linux","redhat/enterprise linux","redhat/enterprise linux desktop","redhat/enterprise linux server","redhat/enterprise linux server aus","redhat/enterprise linux server eus","redhat/enterprise linux workstation","mozilla/thunderbird","mozilla/firefox","torproject/tor"],"epss":{"score":0.87357,"percentile":0.99754,"date":"2026-10-27","history":[]},"kev":{"listed":true,"dateAdded":"2023-06-22","dueDate":"2023-07-13","knownRansomwareCampaignUse":"Unknown","notes":"Apply updates per vendor instructions.\nhttps://www.mozilla.org/en-US/security/advisories/mfsa2016-92/#CVE-2016-9079; https://nvd.nist.gov/vuln/detail/CVE-2016-9079"},"exploits":{"count":2,"verified":true,"firstPublished":"2017-01-24","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":42327,"kind":"exploit","title":"Firefox 50.0.1 - ASM.JS JIT-Spray Remote Code Execution","url":"https://www.exploit-db.com/exploits/42327","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/windows/remote/42327.html","file":"exploits/windows/remote/42327.html","published":"2017-07-14","added":"2017-07-14","updated":"2017-07-14","author":"Rh0","type":"remote","platform":"windows","port":null,"verified":false,"codes":["CVE-2017-5375","CVE-2016-9079"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://rh0dev.github.io/blog/2017/the-return-of-the-jit/"},{"edbId":41151,"kind":"exploit","title":"Mozilla Firefox < 50.0.2 - 'nsSMILTimeContainer::NotifyTimeChange()' Remote Code Execution (Metasploit)","url":"https://www.exploit-db.com/exploits/41151","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/windows/remote/41151.rb","file":"exploits/windows/remote/41151.rb","published":"2017-01-24","added":"2017-01-24","updated":"2017-01-25","author":"Metasploit","type":"remote","platform":"windows","port":null,"verified":true,"codes":["CVE-2016-9079"],"tags":"Metasploit Framework (MSF)","aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://github.com/rapid7/metasploit-framework/blob/f4db90edeb7f03ce1e95f5898954cbea7e13ff6c/modules/exploits/windows/browser/firefox_smil_uaf.rb"}]},"verdict":{"level":"urgent","text":"Known to be exploited in the wild (CISA KEV, CISA remediation deadline 13 July 2023). Treat as an emergency change: patch or isolate now, then hunt for prior compromise."},"changes":[],"references":[{"url":"http://rhn.redhat.com/errata/RHSA-2016-2843.html","tags":["Third Party Advisory"],"source":"security@mozilla.org"},{"url":"http://rhn.redhat.com/errata/RHSA-2016-2850.html","tags":["Third Party Advisory"],"source":"security@mozilla.org"},{"url":"http://www.securityfocus.com/bid/94591","tags":["Broken Link","Third Party Advisory","VDB Entry"],"source":"security@mozilla.org"},{"url":"http://www.securitytracker.com/id/1037370","tags":["Third Party Advisory","VDB Entry"],"source":"security@mozilla.org"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1321066","tags":["Exploit","Issue Tracking","Vendor Advisory"],"source":"security@mozilla.org"},{"url":"https://security.gentoo.org/glsa/201701-15","tags":["Third Party Advisory"],"source":"security@mozilla.org"},{"url":"https://security.gentoo.org/glsa/201701-35","tags":["Third Party Advisory"],"source":"security@mozilla.org"},{"url":"https://www.debian.org/security/2016/dsa-3730","tags":["Third Party Advisory"],"source":"security@mozilla.org"},{"url":"https://www.exploit-db.com/exploits/41151/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"security@mozilla.org"},{"url":"https://www.exploit-db.com/exploits/42327/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2016-92/","tags":["Vendor Advisory"],"source":"security@mozilla.org"},{"url":"http://rhn.redhat.com/errata/RHSA-2016-2843.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://rhn.redhat.com/errata/RHSA-2016-2850.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/94591","tags":["Broken Link","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id/1037370","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1321066","tags":["Exploit","Issue Tracking","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/201701-15","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/201701-35","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2016/dsa-3730","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/41151/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/42327/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.mozilla.org/security/advisories/mfsa2016-92/","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-9079","tags":["US Government Resource"],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2016-9079","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}