Arduino · Arduino · CVE-2019-13991
**Name of the Vulnerable Software and Affected Versions**
Arduino versions prior to Rev3
**Description**
The issue allows remote attackers to send data to LEDs directly connected to GPIO pins via a laser, due to LED photosensitivity.
**Recommendations**
For Arduino versions prior to Rev3, consider using alternative methods to control LEDs that are not susceptible to photosensitivity, or implement physical shielding to prevent external light sources from interfering with the LEDs.