Vulnerability-Lookup

GHSA-X7H6-XXFR-J6PV

Vulnerability from github – Published: 2026-01-13 00:30 – Updated: 2026-01-13 00:30

Details

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.

Severity ?

4.8 (Medium)


                  
                    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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-22212"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-121"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-01-12T23:15:52Z",
    "severity": "MODERATE"
  },
  "details": "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.",
  "id": "GHSA-x7h6-xxfr-j6pv",
  "modified": "2026-01-13T00:30:46Z",
  "published": "2026-01-13T00:30:46Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-22212"
    },
    {
      "type": "WEB",
      "url": "https://github.com/tinyos/tinyos-main"
    },
    {
      "type": "WEB",
      "url": "https://seclists.org/fulldisclosure/2026/Jan/14"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/tinyos-stack-based-buffer-overflow-in-mcp2200gpio"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "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": "CVSS_V4"
    }
  ]
}

CVE-2026-22212 (GCVE-0-2026-22212)

Vulnerability from cvelistv5 – Published: 2026-01-12 23:02 – Updated: 2026-01-13 19:06

Title

TinyOS <= 2.1.2 Stack-Based Buffer Overflow in mcp2200gpio

Summary

Severity ?

4.8 (Medium)


                        
                          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

CWE

CWE-121 - Stack-based Buffer Overflow

Assigner

VulnCheck

References

URL

Tags

	https://seclists.org/fulldisclosure/2026/Jan/14	technical-descriptionexploit
	https://github.com/tinyos/tinyos-main	product
	https://www.vulncheck.com/advisories/tinyos-stack…	third-party-advisory

Impacted products

	Vendor	Product	Version
	TinyOS	TinyOS	Affected: 0 , ≤ 2.1.2 (semver)

Credits

Ron Edgerson

Show details on NVD website

JSON

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  "containers": {
    "adp": [
      {
        "metrics": [
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              "content": {
                "id": "CVE-2026-22212",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-13T19:06:12.050843Z",
                "version": "2.0.3"
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        }
      ],
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        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-X7H6-XXFR-J6PV

CVE-2026-22212 (GCVE-0-2026-22212)

Tags

Sightings

Nomenclature