CVE-2026-23111: Linux Kernel nftables Use-After-Free Enables Root Privilege Escalation — Public Exploit Available

A use-after-free vulnerability in the Linux kernel nftables subsystem (CVE-2026-23111) allows unprivileged local attackers to escalate privileges to root on Debian and Ubuntu LTS systems. A public exploit with over 99% reliability has been released, making immediate patching critical.

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