CVE-2014-1549: Mozilla Firefox

High severity, CVSS 9.3. EPSS: 5.6% chance of exploitation in the next 30 days.

The mozilla::dom::AudioBufferSourceNodeEngine::CopyFromInputBuffer function in Mozilla Firefox before 31.0 and Thunderbird before 31.0 does not properly allocate Web Audio buffer memory, which allows remote attackers to execute arbitrary code or cause a denial of service (buffer overflow and application crash) via crafted audio content that is improperly handled during playback buffering.

Affected products

• Mozilla Firefox: up to and including 30.0
• Mozilla Thunderbird: up to and including 24.7; version 24.0 only; version 24.0.1 only; version 24.1 only; version 24.1.1 only; version 24.2 only; …

Published 2014-07-23. Last modified 2026-06-17.