Well good work, Neil. You got into El Reg. This will be GREAT for your resume, even if you never actually try the exploit. Spamming HN is like growth hacking for your career.
This is FUD spread by the auto industry to make people afraid of public transportation options like high-speed rail. If the rail industry is ignoring this CVE, then it must be because it's either not practically exploitable or not as severe as the author claims. Publishing an "exploit" on a major piece of industrial equipment is great for the resume, but testing it would be a federal offense, so we can assume that the author has no real idea whether it works or not. People who work for the railroad are smart, and have a lot more experience with trains than your average Lambda School grad, so I'll defer to their judgemental rather than enthusiastic headlines like this. Do better.