CVE-2026-38426

Published May 27th, 2026

View on NVD ↗

CVSS v3

7.3

HIGH

CVSS v2

N/A

Affected

PROJECTS

Description

Buffer Overflow vulnerability in arendst Tasmota v.15.3.0.3 and before allows a remote attacker to execute arbitrary code via the xdrv_10_scripter.ino, fetch_jpg(), jpg_task.boundary[40], strcpy() function.

arendst/Tasmota

Alternative firmware for ESP8266 and ESP32 based devices with easy configuration using webUI, OTA updates, automation using timers or rules, expandability and entirely local control over MQTT, HTTP, Serial or KNX. Full documentation at

GitHub

24.5K

sermikr0/CVE-2026-38426

CVE-2026-38426 — strcpy() Stack Buffer Overflow in Tasmota fetch_jpg() boundary[40] (Tasmota <= 15.3.0.3)

GitHub