CVE-2015-4481: Mozilla Firefox

Low severity, CVSS 3.3. EPSS: 0.8% chance of exploitation in the next 30 days.

Race condition in the Mozilla Maintenance Service in Mozilla Firefox before 40.0 and Firefox ESR 38.x before 38.2 on Windows allows local users to write to arbitrary files and consequently gain privileges via vectors involving a hard link to a log file during an update.

Affected products

• Mozilla Firefox: up to and including 39.0.3; version 38.0 only; version 38.0.1 only; version 38.0.5 only; version 38.1.0 only
• Opensuse Opensuse: version 13.1 only; version 13.2 only
• Oracle Solaris: version 11.3 only

Published 2015-08-16. Last modified 2026-06-17.