CVE-2015-4501: Mozilla Firefox

High severity, CVSS 7.5. EPSS: 4.6% chance of exploitation in the next 30 days.

Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 41.0 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 40.0.3

Published 2015-09-24. Last modified 2026-06-17.