CVE-2016-1959: Mozilla Firefox

High severity, CVSS 8.8. EPSS: 2.9% chance of exploitation in the next 30 days.

The ServiceWorkerManager class in Mozilla Firefox before 45.0 allows remote attackers to execute arbitrary code or cause a denial of service (out-of-bounds read and memory corruption) via unspecified use of the Clients API.

Affected products

• Mozilla Firefox: up to and including 44.0.2

Published 2016-03-13. Last modified 2026-06-17.