Mtools, a utility suite for accessing MS-DOS disks on Unix-like systems, contains an out-of-bounds write vulnerability in the parse_vses function within vfat.c. This flaw affects versions prior to 4.0.43-3.oe2403sp3 and can lead to a denial of service due to application crash or instability. A fix is available in version 4.0.43-3.oe2403sp3.