I am looking at the results of a mass vulnerability scan as I type this. Half of the bugs in one case are in fact (binary) parser errors for hand-written parsers. These really should not exist in any language - but in C it's particularly bad. Kaitai Struct or something similar would broadly have prevented these. Rust would help here, but less than a parser generator (because it could automate error checking insertion for things that aren't just out of bound access).

However, half of the vulnerabilities are logic errors in terms of what I would call RBAC enforcement, incorrect access permissions, and so on. Rust won't help at all with any of these.

Rust is overly complex and difficult, Go is simpler and easier and has the memory protection people are obsessed with