ZDI-26-393: X.Org Server SetMap Request Stack-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-2026-50259.
EPSS 0.00 CVSS 7.8 CVE-2026-50259 X.Org US