Some background to J-Link, the device in question

J-Link models

Fig. 1. J-Link EDU Terms of Use

Our research: the milestones

Collecting the info

Digging into J-Link EDU v10

Fig. 2. J-Link EDU v10 and v11 after disassembly
Fig. 3. J-Link configuration area

We found some flaws and reported them to the vendor

Fig. 4. Beginning of the main firmware area

Possible implications of the flaws. What is at stake?

User piracy

Supply chain attacks


A bonus picture of a debugger debugging itself. Watch for free, no registration



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