Telnet Vulnerability Exposes 800,000 Servers to Active Attacks

First seen 28 Jan 2026, 02:54 UTC • Govinfosecurity

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A critical vulnerability in the telnetd server software has been identified, putting approximately 800,000 servers at risk. The U.S. Cybersecurity and Infrastructure Security Agency has added this flaw to its catalog of known exploited vulnerabilities, prompting urgent attention from system administrators.

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Critical RCE Vulnerability in GNU InetUtils telnetd Exposes Systems to Attacks Critical Authentication Bypass Vulnerability in telnetd Disclosed

Telnet Vulnerability Exposes 800,000 Servers to Active Attacks

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