CVE-2015-7221: Fedoraproject Fedora

High severity, CVSS 10.0. EPSS: 4.5% chance of exploitation in the next 30 days.

Buffer overflow in the nsDeque::GrowCapacity function in xpcom/glue/nsDeque.cpp in Mozilla Firefox before 43.0 might allow remote attackers to cause a denial of service or possibly have unspecified other impact by triggering a deque size change.

Affected products

• Fedoraproject Fedora: version 22 only; version 23 only
• Mozilla Firefox: up to and including 42.0
• Opensuse Leap: version 42.1 only
• Opensuse Opensuse: version 13.1 only; version 13.2 only

Published 2015-12-16. Last modified 2026-06-17.