NatJack finds every tested NAT implementation vulnerable to attack

NatJack research presented at Black Hat USA 2026 found exploitable behavior in all 32 tested NAT products and configurations, spanning Windows, Linux, and macOS. The attack class can hijack active connections, poison DNS responses, or disable connectivity without requiring IP spoofing or Layer 2 access.
Source

👉@sysadminoff

https://4sysops.com/archives/natjack-finds-every-tested-nat-implementation-vulnerable-to-attack/