CVE-2026-28520HIGH 8.4EPSS p9.1%

CVE-2026-28520CVE-2026-28520

Description

arduino-TuyaOpen before version 1.2.1 contains a single-byte buffer overflow vulnerability in the WiFiMulti component. When the victim's smart hardware connects to an attacker-controlled AP hotspot, the attacker can exploit the overflow to execute arbitrary code on the affected embedded device.

Scoring

CVSS 3.18.4 (HIGH)
VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS0.19% probability of exploitation · percentile 9.1% · 2026-06-19T12:03:05Z
Published2026-03-16
Last modified2026-03-17

Underlying weaknesses· 1

CWE-193

References

  1. https://github.com/tuya/arduino-TuyaOpen
  2. https://src.tuya.com/announcement/32
  3. https://www.vulncheck.com/advisories/arduino-tuyaopen-wifimulti-single-byte-buffer-overflow-remote-code-execution

1

TypeTargetConfidenceTier
WeaknessOff-by-one Errorcwe-1930%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.