Still Using Telnet? This CVE Should Scare You

Описание: What if a login prompt wasn’t really protecting your system?
CVE-2026-24061 proves that one small mistake can mean total compromise.

In this video, we break down CVE-2026-24061, a critical vulnerability found in the telnetd service of GNU Inetutils. This bug allows attackers to bypass authentication and potentially gain root-level access on affected systems. No password cracking. No brute force. Just broken trust in how user data is handled. If you think Telnet is “old news,” this CVE will change your mind.

First, we explain what telnetd is and why it still exists in real environments. Many legacy servers, lab machines, embedded systems, and even internal enterprise networks still run Telnet for compatibility reasons. That makes this vulnerability especially dangerous—because it often lives in places people forget to secure or monitor.

Next, we walk through how CVE-2026-24061 works at a high level. The issue comes from improper handling of environment variables during the login process. Attackers can abuse this logic flaw to influence authentication behavior and execute commands without valid credentials. We also discuss why logic and access-control bugs like this are harder to catch than typical memory corruption issues.

Finally, we talk about real-world impact and lessons for students and professionals. If you’re a cybersecurity student, this CVE is a perfect example of why understanding protocols and legacy services matters. If you’re working in networking or security operations, this highlights the risk of leaving unused or outdated services exposed—even internally.

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https://github.com/punitdarji/telnetd...

#github #cve #bugbounty #cybersecurity #devops #ethicalhacking