CVE-2025-67873 | THREATINT

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.

PUBLISHED Reserved 2025-12-12 | Published 2025-12-17 | Updated 2025-12-18 | Assigner GitHub_M

MEDIUM: 4.8CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L

Problem types

CWE-122: Heap-based Buffer Overflow

Product status

<= 6.0.0-Alpha5

affected

References

github.com/...pstone/security/advisories/GHSA-hj6g-v545-v7jg exploit

github.com/...pstone/security/advisories/GHSA-hj6g-v545-v7jg

github.com/...ommit/cbef767ab33b82166d263895f24084b75b316df3

cve.org (CVE-2025-67873)

nvd.nist.gov (CVE-2025-67873)

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