CVE-2026-22212
Medium
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.
SeverityMedium
CVSS4.8
Exploit probability—
ProductTinyOS
PublishedJan 12, 2026
First seenJan 12, 2026
Weakness typeCWE-121CWE-121
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| TinyOS TinyOS | v ≤ 2.1.2 | — |
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