CVE-2025-69209

ArduinoCore-avr contains the source code and configuration files of the Arduino AVR Boards platform. A vulnerability in versions prior to 1.8.7 allows an attacker to trigger a stack-based buffer overflow when converting floating-point values to strings with high precision. By passing very large...

CVE-2025-69209

The CVE-2025-69209 entry concerns ArduinoCore-avr. A stack-based buffer overflow occurs in earlier releases (versions before 1.8.7) when converting floating-point values to strings with very high precision via dtostrf, writing beyond fixed-size stack buffers, causing memory corruption and potenti...