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.
Advisories

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Fixes

Solution

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Workaround

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History

Tue, 13 Jan 2026 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 13 Jan 2026 09:30:00 +0000

Type Values Removed Values Added
First Time appeared Tinyos
Tinyos tinyos
Vendors & Products Tinyos
Tinyos tinyos

Mon, 12 Jan 2026 23:15:00 +0000

Type Values Removed Values Added
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.
Title TinyOS <= 2.1.2 Stack-Based Buffer Overflow in mcp2200gpio
Weaknesses CWE-121
References
Metrics cvssV4_0

{'score': 4.8, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-01-13T19:06:27.766Z

Reserved: 2026-01-06T16:47:17.187Z

Link: CVE-2026-22212

cve-icon Vulnrichment

Updated: 2026-01-13T19:06:23.122Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-01-12T23:15:52.140

Modified: 2026-01-13T14:03:18.990

Link: CVE-2026-22212

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-01-13T09:27:19Z

Weaknesses