ZDI-26-761: X.Org Server XInput Passive Grab Use-After-Free Information Disclosure Vulnerability
This vulnerability allows local attackers to disclose sensitive information 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 5.5. The following CVEs are assigned: CVE-2026-93516.
Affected Software
Event History
Frequently Asked Questions
Who is realistically exposed to exploitation?
Affected X.Org Server installations where an attacker can execute low-privileged code locally are exposed. The provided information does not indicate that remote, unauthenticated attackers can exploit it.
What level of access does an attacker need?
The attacker must first be able to execute low-privileged code on the target system. Exploitation is described as a local information-disclosure issue.
What is the assigned CVE and severity rating?
The assigned CVE is CVE-2026-93516. ZDI assigned a CVSS score of 5.5.