Practically speaking, even with `unsafe` the exploitability of rust programs is extremely difficult. With modern mitigation techniques it is required that you be able to chain multiple vulnerabilities and primitives together in order to actually reliably exploit software.

Bug density from `unsafe` is so low in Rust programs that it's just radically more difficult.

My company (not me, Chompie did the work, all credit to her for it) took a known bug, which was super high potential (write arbitrary data to the host's memory), and found it extremely difficult to exploit (we were unable to): https://chompie.rip/Blog+Posts/Attacking+Firecracker+-+AWS'+...

Ultimately there were guard pages where we wanted to write and it would have taken other vulnerabilities to actually get a working POC.

Exploitation of Rust programs is just flat out really, really hard.