TinyOS up to 2.1.2 mcp2200gpio /dev/usb/ strcpy stack-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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3.2$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in TinyOS up to 2.1.2. The affected element is the function strcpy of the file /dev/usb/ of the component mcp2200gpio. Such manipulation leads to stack-based overflow. This vulnerability is traded as CVE-2026-22212. An attack has to be approached locally. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in TinyOS up to 2.1.2. Affected by this issue is the function strcpy of the file /dev/usb/ of the component mcp2200gpio. The manipulation with an unknown input leads to a stack-based overflow vulnerability. Using CWE to declare the problem leads to CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). Impacted is availability. CVE summarizes:

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.

The weakness was shared by Ron Edgerson. The advisory is shared for download at seclists.org. This vulnerability is handled as CVE-2026-22212 since 01/06/2026. The exploitation is known to be easy. The attack needs to be approached locally. There are known technical details, but no exploit is available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 3.3
VulDB Meta Temp Score: 3.2

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

01/06/2026 CVE reserved
01/13/2026 +7 days Advisory disclosed
01/13/2026 +0 days VulDB entry created
01/13/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: seclists.org
Researcher: Ron Edgerson
Status: Not defined

CVE: CVE-2026-22212 (🔒)
GCVE (CVE): GCVE-0-2026-22212
GCVE (VulDB): GCVE-100-340544

Entryinfo

Created: 01/13/2026 08:40
Changes: 01/13/2026 08:40 (67)
Complete: 🔍
Cache ID: 216::103

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