CVE-2025-67873

HighCVSS 7.8/10Last modified Oct 13, 2026

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.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-122

Affected software

Vendor	Product	Versions
capstone-engine	capstone	<= 6.0.0-Alpha5

References

https://github.com/capstone-engine/capstone/commit/cbef767ab33b82166d263895f24084b75b316df3Patch
https://github.com/capstone-engine/capstone/security/advisories/GHSA-hj6g-v545-v7jgExploit, Vendor Advisory
https://github.com/capstone-engine/capstone/security/advisories/GHSA-hj6g-v545-v7jgExploit, Vendor Advisory

Timeline

Published: Dec 17, 2025
Last modified: Oct 13, 2026
NVD status: Analyzed

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