Key Findings CVE-2026-31431 (Copy Fail) is a 9-year-old Linux kernel vulnerability enabling unprivileged users to gain root access A 732-byte Python script can exploit the flaw to modify setuid binaries in memory and achieve root privileges The vulnerability affects all major Linux distributions since 2017, including Ubuntu, RHEL, Amazon Linux, SUSE, and Debian Exploitation is reliable and portable across distributions with no race conditions required The flaw exists in the a
