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Vulnerability Details :

CVE-2026-22212

Summary
Assigner-VulnCheck
Assigner Org ID-83251b91-4cc7-4094-a5c7-464a1b83ea10
Published At-12 Jan, 2026 | 23:02
Updated At-13 Jan, 2026 | 19:06
Rejected At-
Credits

TinyOS <= 2.1.2 Stack-Based Buffer Overflow in mcp2200gpio

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.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:VulnCheck
Assigner Org ID:83251b91-4cc7-4094-a5c7-464a1b83ea10
Published At:12 Jan, 2026 | 23:02
Updated At:13 Jan, 2026 | 19:06
Rejected At:
▼CVE Numbering Authority (CNA)
TinyOS <= 2.1.2 Stack-Based Buffer Overflow in mcp2200gpio

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.

Affected Products
Vendor
TinyOS
Product
TinyOS
Repo
https://github.com/tinyos/tinyos-main
Default Status
unknown
Versions
Affected
  • From 0 through 2.1.2 (semver)
Problem Types
TypeCWE IDDescription
CWECWE-121CWE-121 Stack-based Buffer Overflow
Type: CWE
CWE ID: CWE-121
Description: CWE-121 Stack-based Buffer Overflow
Metrics
VersionBase scoreBase severityVector
4.04.8MEDIUM
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
Version: 4.0
Base score: 4.8
Base severity: MEDIUM
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
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

finder
Ron Edgerson
Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
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
Hyperlink: https://seclists.org/fulldisclosure/2026/Jan/14
Resource:
technical-description
exploit
Hyperlink: https://github.com/tinyos/tinyos-main
Resource:
product
Hyperlink: https://www.vulncheck.com/advisories/tinyos-stack-based-buffer-overflow-in-mcp2200gpio
Resource:
third-party-advisory
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:disclosure@vulncheck.com
Published At:12 Jan, 2026 | 23:15
Updated At:13 Jan, 2026 | 14:03

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary4.04.8MEDIUM
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Type: Secondary
Version: 4.0
Base score: 4.8
Base severity: MEDIUM
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CPE Matches

Weaknesses
CWE IDTypeSource
CWE-121Primarydisclosure@vulncheck.com
CWE ID: CWE-121
Type: Primary
Source: disclosure@vulncheck.com
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://github.com/tinyos/tinyos-maindisclosure@vulncheck.com
N/A
https://seclists.org/fulldisclosure/2026/Jan/14disclosure@vulncheck.com
N/A
https://www.vulncheck.com/advisories/tinyos-stack-based-buffer-overflow-in-mcp2200gpiodisclosure@vulncheck.com
N/A
Hyperlink: https://github.com/tinyos/tinyos-main
Source: disclosure@vulncheck.com
Resource: N/A
Hyperlink: https://seclists.org/fulldisclosure/2026/Jan/14
Source: disclosure@vulncheck.com
Resource: N/A
Hyperlink: https://www.vulncheck.com/advisories/tinyos-stack-based-buffer-overflow-in-mcp2200gpio
Source: disclosure@vulncheck.com
Resource: N/A

Change History

0
Information is not available yet

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