Cybersecurity
Unpatched Calix flaw lets hackers bypass NAT to expose internal devices
An unpatched vulnerability in Calix GS7 XGS (GS5239XG) residential routers used by multiple U.S. broadband providers allows remote, unauthenticated attackers to create port-forwarding rules that can expose local network devices to the…
AI Summary
A vulnerability in Calix GS7 XGS (GS5239XG) residential routers, which are deployed by several U.S. broadband providers, remains unpatched. The flaw enables remote, unauthenticated attackers to create port‑forwarding rules that expose devices on the local network to the public internet. This bypasses NAT protections, allowing external access to internal hardware.
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