Description
TinyOS versions up to and including 2.1.2 contain a stack-based buffer overflow vulnerability in the mcp2200gpio utility. The vulnerability is caused by unsafe use of strcpy() and strcat() functions when constructing device paths during automatic device discovery. A local attacker can exploit this by creating specially crafted filenames under /dev/usb/, leading to stack memory corruption and application crashes.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| TinyOS | TinyOS | ≤ 2.1.2 | — |
References
- https://seclists.org/fulldisclosure/2026/Jan/14 technical-description exploit
- https://github.com/tinyos/tinyos-main product
- https://www.vulncheck.com/advisories/tinyos-stack-based-buffer-overflow-in-mcp2200gpio third-party-advisory