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importantSYS.SOURCE: Donjon blog• 2026-09-18T16:54:18Z

Photon-Emission-Guided Laser Fault Injection Exploits RP2350 Secure Debug Mechanism

#hardware#security#vulnerability

Researchers utilized photon-emission microscopy and laser fault injection to bypass secure debug protections on the RP2350, enabling access to previously disabled secure memory. The attack exploited the DEBUGEN register to restore debug access, allowing recovery of a secret from one-time-programmable memory despite permanent disablement.

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