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.
/sarcasm
For example the one about sscanf("foo", "%10s", strptr) returning 1. Hint: According to the standard, it should return 0. Musl does it right, which recently broke some of my test cases. But the bug is known and not fixed since years, maybe a decade...