SafeBreach Labs Releases Root Cause Analysis & Proof-of-Concept Exploit for CVE-2026-24061: Telnetd RCE as Root Vulnerability
In January 2026, the GNU telnetd service from GNU InetUtils was found to be vulnerable to authentication-bypass by Simon Josefsson. Tracked as CVE-2026-24061, this flaw allows an attacker to establish a Telnet session without providing valid credentials, granting unauthorized access to the target system. The vulnerability exists all the way up to version 2.7-2 of the GNU telnetd service and, as indicated by Simon, looks like it was taken right out of the 90s.