CVE-2014-1547: Mozilla Firefox

High severity, CVSS 10.0. EPSS: 5.6% chance of exploitation in the next 30 days.

Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 31.0, Firefox ESR 24.x before 24.7, and Thunderbird before 24.7 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors.

Affected products

• Mozilla Firefox: up to and including 30.0; version 24.0 only; version 24.0.1 only; version 24.0.2 only; version 24.1.0 only; version 24.1.1 only
• Mozilla Firefox ESR: version 24.2 only; version 24.3 only; version 24.4 only; version 24.5 only; version 24.6 only
• Mozilla Thunderbird: up to and including 24.6; 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.