CVE-2025-67873

low

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.

References

https://github.com/capstone-engine/capstone/security/advisories/GHSA-hj6g-v545-v7jg

https://github.com/capstone-engine/capstone/commit/cbef767ab33b82166d263895f24084b75b316df3

Details

Source: Mitre, NVD

Published: 2025-12-17

Updated: 2026-01-02

Risk Information

CVSS v2

Base Score: 7.2

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 7.8

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Severity: High

CVSS v4

Base Score: 2.4

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

Severity: Low

EPSS

EPSS: 0.00013