ZDI-CAN-30560: ZDI-26-408: X.Org Server ComputeScaledProperties 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-2026-56003.
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-CAN-30560?
The severity of ZDI-CAN-30560 is rated at 7.8 according to the CVSS score.
How do I fix ZDI-CAN-30560?
To fix ZDI-CAN-30560, you should update to the latest version of the X.Org Server that includes the security patch.
Who is affected by the ZDI-CAN-30560 vulnerability?
Local attackers with the ability to execute low-privileged code on the system are affected by ZDI-CAN-30560.
What type of vulnerability is ZDI-CAN-30560?
ZDI-CAN-30560 is a heap-based buffer overflow privilege escalation vulnerability.
What must an attacker achieve to exploit ZDI-CAN-30560?
An attacker must first obtain the ability to execute low-privileged code on the target system to exploit ZDI-CAN-30560.