New NatJack Attacks Hijack TCP Sessions and Spoof DNS by Manipulating NAT Tables

Security researcher Malcolm Stagg has disclosed a new attack class called NatJack that manipulates network address translation NAT connection state to hijack active TCP sessions, spoof DNS responses, expose mapped ports, and exhaust NAT tables. Presented at Black Hat USA 2026, the research found...

CVE-2024-21616

An Improper Validation of Syntactic Correctness of Input vulnerability in Packet Forwarding Engine PFE of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause Denial of Service DoS. On all Junos OS MX Series and SRX Series platforms, when SIP ALG is enabled, and a...