Never got a malware on a Mac in 10 years and I don't use always-on antiviruses (only Malwarebytes or EtreCheck when I think there is something wrong)
Can malware use this vulnerability to take over my computer?
No.
Can malware use this vulnerability to steal my private information?
No.
Can malware use this vulnerability to rickroll me?
Yes. I mean, it could also rickroll you without using it.
Can this be exploited from Javascript on a website?
No.
Can this be exploited from Java apps?
Wait, people still use Java?
Can this be exploited from Flash applets?
Please stop.
Can I catch BadBIOS from this vulnerability?
No.
...Doing the same on Windows causes complete inusability of the system in 30 minutes.
Regards, AlexChess