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

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 14 Jan 2026 04:15:00 +0900

Type Values Removed Values Added
Metrics ssvc

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


Tue, 13 Jan 2026 18:30:00 +0900

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

Tue, 13 Jan 2026 08:15:00 +0900

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

Sign in to view the affected projects.

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: 2026-01-13T18:27:19Z

Weaknesses