CVE-2016-7944: Fedoraproject Fedora

Critical severity, CVSS 9.8. EPSS: 3.4% chance of exploitation in the next 30 days.

Integer overflow in X.org libXfixes before 5.0.3 on 32-bit platforms might allow remote X servers to gain privileges via a length value of INT_MAX, which triggers the client to stop reading data and get out of sync.

Affected products

• Fedoraproject Fedora: version 24 only; version 25 only
• X.org Libxfixes: up to and including 5.0.2

Published 2016-12-13. Last modified 2026-06-17.