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Palo Alto Networks has disclosed that threat actors may have attempted to unsuccessfully exploit a recently disclosed critical security flaw as early as April 9, 2026
Telnet Flaw Allows Unauthenticated Users to Gain Root AccessHackers are on the hunt for open telnet ports in servers after discovering that a version of legacy client-server application protocol is vulnerable to an authentication bypass vulnerability. More than 800,000 servers could be actively targeted in the wild.
Proof-of-concept exploit code is now available for a critical Ivanti Sentry authentication bypass vulnerability that enables attackers to execute code remotely as root on vulnerable systems. [...]
Proof-of-concept exploit code is now available for a pre-authentication remote code execution (RCE) vulnerability allowing attackers to execute arbitrary code remotely with root privileges on unpatched Cloud Foundation and NSX Manager appliances. [...]