HOMEVULNERABILITIESCVE-2026-28519
HIGH

CVE-2026-28519

CWE-122Published: March 16, 2026· Updated: Mar 17, 2026

8.8
CVSS v3.1
EPSS:0.01%probability of exploitation in 30 daysPercentile:3.0th

Official Description

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.

NVD Source

Technical Analysis

CVE-2026-28519 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorAdjacent
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

tuya1 product
arduino-tuyaopen
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
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Official Patches & Advisories

ADVISORYhttps://src.tuya.com/announcement/32
ADVISORYhttps://www.vulncheck.com/advisories/arduino-tuyaopen-dnsserver-heap-based-buffer-overflow-remote-code-execution

All References (3)

→
https://github.com/tuya/arduino-TuyaOpenProduct
→
https://src.tuya.com/announcement/32Vendor Advisory
→
https://www.vulncheck.com/advisories/arduino-tuyaopen-dnsserver-heap-based-buffer-overflow-remote-code-executionThird Party Advisory

Quick Facts

CVE IDCVE-2026-28519
CVSS Score8.8 / 10
SeverityHIGH
WeaknessCWE-122
CISA KEVNo
EPSS (30d)0.01%
Affected1 vendor
PublishedMar 16, 2026

Related CVEs (CWE-122)

CVE-2026-46752
10.0
CVE-2026-44050
9.9
CVE-2026-32945
9.8
CVE-2006-10003
9.8
CVE-2026-28780
9.8
CVE-2026-41096
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-28519 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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