CVE-2017-10971: X.org X Server

High severity, CVSS 8.8. EPSS: 3.9% chance of exploitation in the next 30 days.

In the X.Org X server before 2017-06-19, a user authenticated to an X Session could crash or execute code in the context of the X Server by exploiting a stack overflow in the endianness conversion of X Events.

Affected products

• X.org X Server: up to and including 1.19.3

Published 2017-07-06. Last modified 2026-06-17.