Hackers exploit critical telnetd auth bypass flaw to get root
A coordinated campaign has been observed targeting a recently disclosed critical-severity vulnerability that has been present in the GNU InetUtils telnetd server for 11 years. [...]
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Background for this topic.
An exploit is code, data, or a sequence of actions that uses a software, hardware, or configuration vulnerability to produce unintended behavior. Depending on the flaw and the attacker’s access, it may enable unauthorized code execution, privilege escalation, information disclosure, or denial of service. Exploitation can occur remotely through exposed services, web applications, or client software, or locally after an attacker gains limited access.
Exploitation matters because a vulnerability becomes an active attack path when the required conditions are reachable and exploitable. Defenders should inventory affected assets, prioritize remediation when exploitation is known or credible, apply patches or vendor mitigations, and reduce exposure through access controls, segmentation, and secure configuration. Monitoring for exploit-specific indicators—such as abnormal requests, unexpected processes, or privilege changes—supports detection; systems suspected of successful exploitation require containment and investigation for follow-on access.
A coordinated campaign has been observed targeting a recently disclosed critical-severity vulnerability that has been present in the GNU InetUtils telnetd server for 11 years. [...]
Hackers collect $439,250 after exploiting 29 zero-day vulnerabilities on the second day of Pwn2Own Automotive 2026. [...]
Phishing succeeds not because users are careless, but because attackers exploit human timing, context, and emotion. Flare shows how modern phishing has become industrialized, scalable, and increasingly hard to spot. [...]
Threat actors are exploiting misconfigured web applications used for security training and internal penetration testing, such as DVWA, OWASP Juice Shop, Hackazon, and bWAPP, to gain access to cloud environments of Fortune 500 companies and security vendors. [...]