CVE-2025-68114
Medium
Description
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.
SeverityMedium
CVSS4.8
Exploit probability—
ProductCapstone
PublishedDec 17, 2025
First seenDec 17, 2025
Weakness typeCWE-124CWE-124CWE-120CWE-120
How to fix
Update
- capstone-engine capstone6.0.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| capstone-engine capstone | v < 6.0.0, 6.0.0 | 6.0.0 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.