{"id":"CVE-2015-4477","url":"https://www.cyber-defence.io/tools/cve/CVE-2015-4477","generatedAt":"2026-10-27T18:56:17.198Z","title":"Use-after-free vulnerability in the MediaStream playback feature in Mozilla Firefox before 40.0 allows remote attackers to execute arbitrary code via unspecified use of the Web Audio API.","description":"Use-after-free vulnerability in the MediaStream playback feature in Mozilla Firefox before 40.0 allows remote attackers to execute arbitrary code via unspecified use of the Web Audio API.","published":"2015-08-16T01:59:05.000Z","lastModified":"2026-06-17T00:27:21.000Z","status":"Modified","sourceIdentifier":"security@mozilla.org","cvss":{"version":"2.0","score":10,"severity":"HIGH","vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C"},"cwe":[],"affected":["canonical/ubuntu linux","opensuse/opensuse","mozilla/firefox"],"epss":{"score":0.05762,"percentile":0.93027,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (5.76%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00014.html","source":"security@mozilla.org"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00015.html","source":"security@mozilla.org"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00089.html","source":"security@mozilla.org"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00091.html","source":"security@mozilla.org"},{"url":"http://www.mozilla.org/security/announce/2015/mfsa2015-81.html","tags":["Vendor Advisory"],"source":"security@mozilla.org"},{"url":"http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html","source":"security@mozilla.org"},{"url":"http://www.securitytracker.com/id/1033247","source":"security@mozilla.org"},{"url":"http://www.ubuntu.com/usn/USN-2702-1","source":"security@mozilla.org"},{"url":"http://www.ubuntu.com/usn/USN-2702-2","source":"security@mozilla.org"},{"url":"http://www.ubuntu.com/usn/USN-2702-3","source":"security@mozilla.org"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1179484","source":"security@mozilla.org"},{"url":"https://security.gentoo.org/glsa/201605-06","source":"security@mozilla.org"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00014.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00015.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00089.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00091.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.mozilla.org/security/announce/2015/mfsa2015-81.html","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id/1033247","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-2702-1","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-2702-2","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-2702-3","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1179484","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/201605-06","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2015-4477","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."}