Security researchers released a working exploit for CVE-2026-23111, a Linux kernel use-after-free in nf_tables that can let an unprivileged local user gain root and escape a container. The flaw has been publicly reproduced across multiple distributions, so defenders should patch and reboot immediately if their kernels still lack the fix. #CVE-2026-23111 #nf_tables #ExodusIntelligence #FuzzingLabs #Ubuntu #Debian #RHEL #SUSE #AmazonLinux
Keypoints
- CVE-2026-23111 is a Linux kernel use-after-free in nf_tables.
- The bug can let a local unprivileged user escalate to root.
- Exodus Intelligence published a full exploit walkthrough on June 8, 2026.
- FuzzingLabs independently reproduced the flaw on RHEL 10.
- Updating the kernel and rebooting is the recommended mitigation.
Read More: https://thehackernews.com/2026/06/one-character-linux-kernel-flaw-enables.html