CVE-2026-23111: One-Character Linux Kernel Flaw Enables Local Root Access

Linux duck mascot with a bandage representing CVE-2026-23111 nf_tables kernel patch guidance

CVE-2026-23111 is a high-severity Linux nf_tables use-after-free that can let a local attacker become root. Here is what businesses should patch, reboot, and check.

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