A serious vulnerability in the GNU InetUtils telnet daemon allows attackers to gain root access with a simple command, going unnoticed for nearly 11 years. Security experts urge users to update or replace telnetd, as exploitation attempts are already underway. National cybersecurity agencies recommend decommissioning telnet services due to their inherent risks.

Two new vulnerabilities in Linux have been disclosed that can be exploited together to gain full root access. Additionally, CISA has warned of active exploitation of an older vulnerability affecting the Linux kernel, emphasizing the need for organizations to apply patches immediately.