CVE-2015-4477
Mozilla: Use-after-free in MediaStream playback (MFSA 2015-81)
Severity
CriticalRed Hat Product Security
CVSS 2.0
Review impact separately from score.
Published · August 11, 2015
Updated · November 21, 2025
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.
Statement
This issue does not affect the version of firefox and thunderbird as shipped with Red Hat Enterprise Linux 5, 6 and 7.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 2.0 · 6.8AV:N/AC:M/Au:N/C:P/I:P/A:P
CWE-416 · Use After Free