Security vulnerabilities and automated fixes for rf24network issues
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A critical buffer overflow vulnerability was discovered and patched in RF24Network, a popular C++ library for mesh networking over nRF24L01 radio modules. Unvalidated attacker-controlled size values in `memcpy` calls allowed any nearby attacker to trigger memory corruption by transmitting malformed radio frames — no authentication required. This post breaks down how the vulnerability works, how it was fixed, and what developers can learn from it.