8.8
HIGH CVSS 3.1
CVE-2026-28519
arduino-TuyaOpen DnsServer Heap-Based Buffer Overflow Remote Code Execution
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.

INFO

Published Date :

March 15, 2026, 1:36 p.m.

Last Modified :

March 15, 2026, 1:36 p.m.

Remotely Exploit :

No

Source :

VulnCheck
Affected Products

The following products are affected by CVE-2026-28519 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 HIGH 83251b91-4cc7-4094-a5c7-464a1b83ea10
CVSS 4.0 HIGH 83251b91-4cc7-4094-a5c7-464a1b83ea10
Solution
Update to version 1.2.1 or later to fix a heap-based buffer overflow.
  • Update arduino-TuyaOpen to version 1.2.1 or later.
  • Ensure DNS server security.
  • Monitor network traffic for suspicious DNS responses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-28519 vulnerability anywhere in the article.

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.