What is safecerthax?

safecerthax is a remote ARM9 & ARM11 kernel exploit for the Original Nintendo 3DS (O3DS) recovery mode firmware (SAFE_FIRM). It makes it possible to install boot9strap through SafeB9SInstaller on any O3DS/2DS system.

Affected versions

Model Firmware Version Vulnerable?
O3DS/2DS SAFE_FIRM all
O3DS/2DS NATIVE_FIRM 1.0.0-4.4.0
O3DS/2DS NATIVE_FIRM >=5.0.0
N3DS/N2DS all all