Capstone is a disassembly framework. In versions 6.0.0-Alpha5 and prior, Skipdata length is not bounds-checked, so a user-provided skipdata callback can make cs_disasm/cs_disasm_iter memcpy more than 24 bytes into cs_insn.bytes, causing a heap buffer overflow in the disassembly path. Commit cbef767ab33b82166d263895f24084b75b316df3 fixes the issue.
Exploitability
AV:LAC:LPR:LUI:RScope
S:UImpact
C:LI:LA:L4.8/CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:LOther