ZDI-CAN-30931: ZDI-26-686: Linux Kernel nftables Race Condition Local Privilege Escalation Vulnerability
This vulnerability allows local attackers to escalate privileges on affected installations of Linux 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-2026-74565.
Affected Software
Event History
Frequently Asked Questions
Who is exposed to this vulnerability?
Affected Linux Kernel installations are exposed when an attacker can already execute low-privileged code locally on the system. The issue is a local privilege-escalation vulnerability, not one described as remotely exploitable.
What level of access does an attacker need before exploitation?
The attacker must first obtain the ability to execute low-privileged code on the target system. Successful exploitation can then allow escalation of privileges.
Which CVE should be used to track this issue?
This issue is assigned CVE-2026-74565. The advisory identifies it as ZDI-26-686 and assigns a CVSS rating of 7.8.