CVE-2025-68114

Summary

Capstone is a disassembly framework. In versions 6.0.0-Alpha5 and prior, an unchecked vsnprintf return in SStream_concat lets a malicious cs_opt_mem.vsnprintf drive SStream’s index negative or past the end, leading to a stack buffer underflow/overflow when the next write occurs. Commit 2c7797182a1618be12017d7d41e0b6581d5d529e fixes the issue.

Affected Software

Weaknesses

• CWE-124: CWE-124: Buffer Underwrite ('Buffer Underflow')
• CWE-120: CWE-120: Buffer Copy without Checking Size of Input ('Classic 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-85f5-6xr3-q76r

References

• https://github.com/capstone-engine/capstone/security/advisories/GHSA-85f5-6xr3-q76r
• https://github.com/capstone-engine/capstone/commit/2c7797182a1618be12017d7d41e0b6581d5d529e

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