CVE-2015-4477

Severity: critical (CVSS 10.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 5.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2015-08-16 · updated 2026-06-17

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.

Affected products

Canonical Ubuntu Linux: 12.04, 14.04, 15.04
Mozilla Firefox: through 39.0.3
Opensuse: 13.1, 13.2

References

http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00014.html
http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00015.html
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00089.html
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00091.html
http://www.mozilla.org/security/announce/2015/mfsa2015-81.html
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
http://www.securitytracker.com/id/1033247
http://www.ubuntu.com/usn/USN-2702-1
http://www.ubuntu.com/usn/USN-2702-2
http://www.ubuntu.com/usn/USN-2702-3
https://bugzilla.mozilla.org/show_bug.cgi?id=1179484
https://security.gentoo.org/glsa/201605-06

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