Tag: Telnet

Cybersecurity Threat Advisory
Cybersecurity Threat Advisory: KATARU IoT malware

Cybersecurity Threat Advisory: KATARU IoT malware

KATARU is a newly identified IoT malware family that targets internet-facing Linux devices and recruits them into Mirai-style DDoS botnets. It commonly gains access through exposed Telnet services protected by weak or default credentials. What is the threat? KATARU is...

/ September 17, 2026
Cybersecurity Threat Advisory
Cybersecurity Threat Advisory: Telnet authentication bypass flaw

Cybersecurity Threat Advisory: Telnet authentication bypass flaw

A critical security vulnerability has been identified in the GNU InetUtils Telnet daemon (telnetd) that allows unauthenticated attackers to obtain root-level access. The issue was introduced in 2015 and went undetected for nearly 11 years. Review this Cybersecurity Threat Advisory...

/ January 26, 2026