CVE-2015-0813: Mozilla Firefox

Medium severity, CVSS 5.1. EPSS: 5.3% chance of exploitation in the next 30 days.

Use-after-free vulnerability in the AppendElements function in Mozilla Firefox before 37.0, Firefox ESR 31.x before 31.6, and Thunderbird before 31.6 on Linux, when the Fluendo MP3 plugin for GStreamer is used, allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via a crafted MP3 file.

Affected products

• Mozilla Firefox: up to and including 31.5.3; up to and including 36.0.4
• Mozilla Thunderbird: up to and including 31.5

Published 2015-04-01. Last modified 2026-06-17.