CVE-2025-67873

Summary

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.

Affected Software

Weaknesses

• CWE-122: CWE-122: Heap-based Buffer Overflow

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: no
  • Technical Impact: partial

Additional References

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

References

• https://github.com/capstone-engine/capstone/security/advisories/GHSA-hj6g-v545-v7jg
• https://github.com/capstone-engine/capstone/commit/cbef767ab33b82166d263895f24084b75b316df3

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