Description
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.
Scores
CVSS v3
4.8
EPSS
0.0002
EPSS Percentile
6.5%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-122
Status
published
Products (2)
capstone-engine/capstone
6.0.0 alpha1 (5 CPE variants)
capstone-engine/capstone
< 6.0.0
Published
Dec 17, 2025
Tracked Since
Feb 18, 2026