ZDI-26-767: X.Org Server Glamor CopyArea Heap-based Buffer Overflow Privilege Escalation Vulnerability
This vulnerability allows local attackers to escalate privileges on affected installations of X.Org Server. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The ZDI has assigned a CVSS rating of 7.8. The following CVEs are assigned: CVE-2026-93522.
Affected Software
Event History
Frequently Asked Questions
Who is exposed to this vulnerability?
Affected X.Org Server installations are exposed when a local user or process can execute low-privileged code on the system. It is a local privilege-escalation issue rather than a remotely exploitable issue based on the available information.
What access does an attacker need to exploit it?
The attacker must first be able to execute code with low privileges on the target system. The provided information does not describe any additional prerequisites or interaction requirements.