Vulnerability-Lookup

GHSA-8GPJ-J2H5-7993

Vulnerability from github – Published: 2026-03-16 15:30 – Updated: 2026-03-16 15:30

Details

arduino-TuyaOpen before version 1.2.1 contains a heap-based buffer overflow vulnerability in the DnsServer component. An attacker on the same local area network who controls the LAN DNS server can send malicious DNS responses to overflow the heap buffer, potentially allowing execution of arbitrary code on affected embedded devices.

Severity ?

8.8 (High)


                  
                    CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

8.7 (High)


                  
                    CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-28519"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-122"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-03-16T14:19:28Z",
    "severity": "HIGH"
  },
  "details": "arduino-TuyaOpen before version 1.2.1 contains a heap-based buffer overflow vulnerability in the DnsServer component. An attacker on the same local area network who controls the LAN DNS server can send malicious DNS responses to overflow the heap buffer, potentially allowing execution of arbitrary code on affected embedded devices.",
  "id": "GHSA-8gpj-j2h5-7993",
  "modified": "2026-03-16T15:30:42Z",
  "published": "2026-03-16T15:30:42Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-28519"
    },
    {
      "type": "WEB",
      "url": "https://github.com/tuya/arduino-TuyaOpen"
    },
    {
      "type": "WEB",
      "url": "https://src.tuya.com/announcement/32"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/arduino-tuyaopen-dnsserver-heap-based-buffer-overflow-remote-code-execution"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/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-2026-28519 (GCVE-0-2026-28519)

Vulnerability from cvelistv5 – Published: 2026-03-15 13:36 – Updated: 2026-03-16 14:20

Title

arduino-TuyaOpen DnsServer Heap-Based Buffer Overflow Remote Code Execution

Summary

Severity ?

8.7 (High)


                        
                          CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

8.8 (High)


                        
                          CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-122 - Heap-based Buffer Overflow

Assigner

VulnCheck

References

URL

Tags

	https://src.tuya.com/announcement/32	vendor-advisory
	https://github.com/tuya/arduino-TuyaOpen	product
	https://www.vulncheck.com/advisories/arduino-tuya…	third-party-advisory

Impacted products

	Vendor	Product	Version
	Tuya	arduino-TuyaOpen	Affected: 0 , < 1.2.1 (semver)

Date Public ?

2026-03-11 00:00

Credits

Maxime ROSSI BELLOM

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-28519",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-16T14:13:03.068394Z",
                "version": "2.0.3"
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      "descriptions": [
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          "lang": "en",
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        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
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            "attackRequirements": "NONE",
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            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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      },
      "references": [
        {
          "name": "Tuya SRC Security Advisory",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://src.tuya.com/announcement/32"
        },
        {
          "name": "arduino-TuyaOpen GitHub Repository",
          "tags": [
            "product"
          ],
          "url": "https://github.com/tuya/arduino-TuyaOpen"
        },
        {
          "name": "VulnCheck Advisory: arduino-TuyaOpen DnsServer Heap-Based Buffer Overflow Remote Code Execution",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/arduino-tuyaopen-dnsserver-heap-based-buffer-overflow-remote-code-execution"
        }
      ],
      "title": "arduino-TuyaOpen DnsServer Heap-Based Buffer Overflow Remote Code Execution",
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  "cveMetadata": {
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    "datePublished": "2026-03-15T13:36:47.991Z",
    "dateReserved": "2026-02-27T21:07:55.466Z",
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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-8GPJ-J2H5-7993

CVE-2026-28519 (GCVE-0-2026-28519)

Tags

Sightings

Nomenclature