Vulnerability record · CVE-2025-67873 · published 17 December 2025

CVE-2025-67873: Capstone-engine capstone heap-based buffer overflow vulnerability

Capstone Engine · Capstone

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.

7.8 CVSS 3.1 High EPSS 0.24% · top 87.0% CWE-122 · Heap-based buffer overflow

7.8CVSS 3.1 base score

0.24%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

3References, 2 tagged exploit

17 Jun 2026Last modified by NVD

Description

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Capstone Capstone Engine

References

Link	Tags
https://github.com/capstone-engine/capstone/commit/cbef767ab33b82166d263895f24084b75b316df3	Patch
https://github.com/capstone-engine/capstone/security/advisories/GHSA-hj6g-v545-v7jg	ExploitVendor Advisory
https://github.com/capstone-engine/capstone/security/advisories/GHSA-hj6g-v545-v7jg	ExploitVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2025-67873), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.