musl: https://www.cvedetails.com/vulnerability-list/vendor_id-1685...
Can't find separate listings for libc in FreeBSD, OpenBSD but the list is smaller than glibc if you check e.g., VuXML or https://www.cvedetails.com/vulnerability-list/vendor_id-97/p...
Looks like glibc is the worst sinner here.