An issue has been found in Mini-XML (aka mxml) 2.12. It is a stack-based buffer overflow in mxml_write_node in mxml-file.c via vectors involving a double-precision floating point number and the '<order type="real">' substring, as demonstrated by testmxml.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.008
EPSS Ranking 73.5%