FKIE_CVE-2026-28519
Vulnerability from fkie_nvd - Published: 2026-03-16 14:19 - Updated: 2026-03-17 15:38
Severity
Summary
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.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| tuya | arduino-tuyaopen | * |
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"nodes": [
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"cpeMatch": [
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"criteria": "cpe:2.3:a:tuya:arduino-tuyaopen:*:*:*:*:*:*:*:*",
"matchCriteriaId": "8DCD3B50-3018-4B34-AB9B-16C0FB32AF4A",
"versionEndExcluding": "1.2.1",
"vulnerable": true
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"cveTags": [],
"descriptions": [
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"lang": "en",
"value": "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."
},
{
"lang": "es",
"value": "arduino-TuyaOpen antes de la versi\u00f3n 1.2.1 contiene una vulnerabilidad de desbordamiento de b\u00fafer basado en mont\u00edculo en el componente DnsServer. Un atacante en la misma red de \u00e1rea local que controla el servidor DNS de la LAN puede enviar respuestas DNS maliciosas para desbordar el b\u00fafer del mont\u00edculo, lo que podr\u00eda permitir la ejecuci\u00f3n de c\u00f3digo arbitrario en los dispositivos embebidos afectados."
}
],
"id": "CVE-2026-28519",
"lastModified": "2026-03-17T15:38:55.280",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "ADJACENT_NETWORK",
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"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"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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"impactScore": 5.9,
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"type": "Primary"
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"cvssMetricV40": [
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"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
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"attackRequirements": "NONE",
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"availabilityRequirement": "NOT_DEFINED",
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"baseSeverity": "HIGH",
"confidentialityRequirement": "NOT_DEFINED",
"exploitMaturity": "NOT_DEFINED",
"integrityRequirement": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "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",
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"vulnerabilityResponseEffort": "NOT_DEFINED"
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"source": "disclosure@vulncheck.com",
"type": "Secondary"
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"published": "2026-03-16T14:19:28.127",
"references": [
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"source": "disclosure@vulncheck.com",
"tags": [
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"url": "https://github.com/tuya/arduino-TuyaOpen"
},
{
"source": "disclosure@vulncheck.com",
"tags": [
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"url": "https://src.tuya.com/announcement/32"
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"tags": [
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"url": "https://www.vulncheck.com/advisories/arduino-tuyaopen-dnsserver-heap-based-buffer-overflow-remote-code-execution"
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"sourceIdentifier": "disclosure@vulncheck.com",
"vulnStatus": "Analyzed",
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"value": "CWE-122"
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"source": "disclosure@vulncheck.com",
"type": "Primary"
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]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
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.
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