Heap buffer overflow in "libr/bin/format/mach0/mach0.c" in radare2 prior to 5.6.8. If address sanitizer is disabled during the compiling, the program should execute into the "r_str_ncpy" function. Therefore I think it is very likely to be exploitable.
CWE-787 - Out-of-Bounds Write
Out-of-bounds write vulnerability is a memory access bug that allows software to write data past the end or before the beginning of the intended buffer. This may result in the corruption of data, a crash, or arbitrary code execution.