OpenSSH Security Update USN-8928-1: Nine CVEs Fixed, Is Your Ubuntu Server Running the New Daemon? Ubuntu fixed nine OpenSSH CVEs on October 14, 2026. How to check the installed version, read the changelog and prove the running daemon started after the upgrade, with real output from an Ubuntu 24.04 server. Oct 21, 2026 7 min read Linux
Is Your Ubuntu Kernel Patched Against ssh-keysign-pwn (CVE-2026-46333)? A 60-Second Changelog Check CVE-2026-46333 lets a local user read /etc/shadow and SSH host keys. Cloud kernels have their own version numbers, so here is a check that works on any Ubuntu kernel, run on a real server, plus the ptrace mitigation. Oct 19, 2026 6 min read Linux
