CVE-2025-67873 (GCVE-0-2025-67873)
Vulnerability from cvelistv5 – Published: 2025-12-17 21:12 – Updated: 2025-12-18 15:09
VLAI
EPSS
VEX
Title
Capstone doesn't check Skipdata length, leading to cs_insn.bytes heap buffer overflow
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.
Severity
4.8 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-12-18 14:55 UTC
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/capstone-engine/capstone/secur… | x_refsource_CONFIRM |
| https://github.com/capstone-engine/capstone/commi… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| capstone-engine | capstone |
Affected:
<= 6.0.0-Alpha5
|
guessed |
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