https://seclists.org/oss-sec/2026/q3/94: FW: X.Org Security Advisory: multiple security issues X.Org X server and Xwayland
Published Jul 8, 2026
·Updated
Affected Software
2 affected components
X.Org X Server<21.1.24
Xwayland<24.1.13
Frequently Asked Questions
1
What is the severity of X.Org Security Advisory: multiple security issues X.Org X server and Xwayland?
The severity of the multiple security issues in X.Org X server and Xwayland varies, but it is considered critical due to potential remote code execution and privilege escalation risks.
2
How do I fix X.Org Security Advisory: multiple security issues X.Org X server and Xwayland?
To fix the vulnerabilities mentioned in the advisory, upgrade to xorg-server version 21.1.24 or later and xwayland version 24.1.13 or later.
3
What are the specific vulnerabilities in X.Org Security Advisory: multiple security issues X.Org X server and Xwayland?
The security advisory details multiple vulnerabilities including buffer overflows and improper input validation that could allow attackers to execute arbitrary code.
4
Who is affected by X.Org Security Advisory: multiple security issues X.Org X server and Xwayland?
Any users and organizations running versions of X.Org X server prior to 21.1.24 or Xwayland prior to 24.1.13 are potentially affected.
5
Is there any workaround for X.Org Security Advisory: multiple security issues X.Org X server and Xwayland?
There are no official workarounds provided in the advisory, so upgrading to the secured versions is the recommended action.