ZDI-CAN-32356: ZDI-26-785: FreeBSD Kernel Shared Memory Time-Of-Check Time-Of-Use Local Privilege Escalation Vulnerability
This vulnerability allows local attackers to escalate privileges on affected installations of FreeBSD Kernel. 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-2026-58094.
Affected Software
Event History
Frequently Asked Questions
Who is exposed to this vulnerability?
FreeBSD systems running the affected FreeBSD Kernel are exposed if an attacker can execute low-privileged code locally on the system. This is a local privilege-escalation issue, so it is not described as remotely exploitable from the provided 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 FreeBSD system. Successful exploitation can then allow escalation of privileges.
How severe is this issue?
ZDI assigned this vulnerability a CVSS score of 7.8. It is tracked as CVE-2026-58094.