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CVE-2026-22212

Published: Jan 12, 2026

Modified: Jan 13, 2026

PUBLISHED

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.

Vendor	Product	Versions
TinyOS	TinyOS	affected `0 - <= 2.1.2`

Weaknesses (CWE)

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

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