---
license: other
tags:
- huntr
- model-file-vulnerability
- circle
- proof-of-concept
---

# Circle FlatBuffer Triggered Inference Backdoor PoC

This repository contains a benign proof-of-concept for a Circle model-file
vulnerability report. The backdoored `model.circle` encodes a targeted
inference backdoor in model weights. It behaves normally on benign inputs and
flips the output class only for a trigger input.

The payload is an inference-behavior demonstration only. It contains no code
execution payload, network access, persistence, credential access, or
destructive behavior.