CVE-2026-38427

CVE-2026-38427: Integer Wraparound → Heap Buffer Overflow in Tasmota fetchjpg CVE: CVE-2026-38427 Severity: Critical CVSS 9.8 Product: Arendst Tasmota Affected Version: = 15.3.0.3 File: tasmota/tasmotaxdrvdriver/xdrv10scripter.ino Function: fetchjpg — case 2 MJPEG frame fetch Author: Saidakbarxon...

CVE-2026-38422

CVE-2026-38422: Remote Code Execution via Combined Buffer Overflows in Tasmota fetchjpg CVE: CVE-2026-38422 Severity: Critical CVSS 9.8 Product: Arendst Tasmota Affected Version: = 15.3.0.3 File: tasmota/tasmotaxdrvdriver/xdrv10scripter.ino Function: fetchjpg Author: Saidakbarxon Maxsudxonov...

CVE-2026-38426

CVE-2026-38426: strcpy Stack Buffer Overflow in Tasmota fetchjpg boundary40 CVE: CVE-2026-38426 Severity: Critical CVSS 9.8 Product: Arendst Tasmota Affected Version: = 15.3.0.3 File: tasmota/tasmotaxdrvdriver/xdrv10scripter.ino Function: fetchjpg — case 0 initial connection Author: Saidakbarxon...

Tasmota Configuration Exposure Detection

Tasmota configuration is exposed. !/usr/bin/env python3 -- coding: utf-8 -- """Tasmota configuration is exposed.""" from kittysploit import from lib.protocols.http.httpclient import Httpclient class ModuleScanner, Httpclient: info = 'name': 'Tasmota Configuration Exposure Detection', 'description...

Tasmota Installer Exposure Detection

Tasmota is susceptible to the Installation page exposure due to misconfiguration. !/usr/bin/env python3 -- coding: utf-8 -- """Tasmota is susceptible to the Installation page exposure due to misconfiguration.""" from kittysploit import from lib.protocols.http.httpclient import Httpclient class...

CVE-2026-38426

Buffer Overflow vulnerability in arendst Tasmota v.15.3.0.3 and before allows a remote attacker to execute arbitrary code via the xdrv10scripter.ino, fetchjpg, jpgtask.boundary40, strcpy function...

CVE-2026-38427

An issue in fetchjpg in xdrv10scripter.ino in Tasmota through 15.3.0.3 allows a remote attacker to cause heap buffer overflow. The Content-Length from a JPEG stream is stored in a uint16t variable; values above 65535 wrap around, causing allocation of a smaller buffer than the data actually read...

CVE-2026-38422

Buffer Overflow vulnerability in arendst Tasmota v.15.3.0.3 and before allows a remote attacker to execute arbitrary code via the tasmota/tasmotaxdrvdriver/xdrv10scripter.ino, fetchjpg function...

CVE-2026-38427

An issue in fetchjpg in xdrv10scripter.ino in Tasmota through 15.3.0.3 allows a remote attacker to cause heap buffer overflow. The Content-Length from a JPEG stream is stored in a uint16t variable; values above 65535 wrap around, causing allocation of a smaller buffer than the data actually read...

CVE-2026-38422

Buffer Overflow vulnerability in arendst Tasmota v.15.3.0.3 and before allows a remote attacker to execute arbitrary code via the tasmota/tasmotaxdrvdriver/xdrv10scripter.ino, fetchjpg function...

CVE-2026-38426

Buffer Overflow vulnerability in arendst Tasmota v.15.3.0.3 and before allows a remote attacker to execute arbitrary code via the xdrv10scripter.ino, fetchjpg, jpgtask.boundary40, strcpy function...

PT-2026-43710

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.boundary40, strcpy function...

CVE-2026-38426

Buffer Overflow vulnerability in arendst Tasmota v.15.3.0.3 and before allows a remote attacker to execute arbitrary code via the xdrv10scripter.ino, fetchjpg, jpgtask.boundary40, strcpy function...

CVE-2026-38427: Heap-based Buffer Overflow

An issue in fetchjpg in xdrv10scripter.ino in Tasmota through 15.3.0.3 allows a remote attacker to cause heap buffer overflow. The Content-Length from a JPEG stream is stored in a uint16t variable; values above 65535 wrap around, causing allocation of a smaller buffer than the data actually read...

Tasmota security vulnerabilities

Tasmota is an IoT device firmware and automation control platform developed by Theo Arends. Versions of Tasmota prior to 15.3.0.3 contained security vulnerabilities. These vulnerabilities stemmed from the fetchjpg function in xdrv10scripter.ino, which stored the Content-Length of JPEG streams in ...

CVE-2026-38427

An issue in fetchjpg in xdrv10scripter.ino in Tasmota through 15.3.0.3 allows a remote attacker to cause heap buffer overflow. The Content-Length from a JPEG stream is stored in a uint16t variable; values above 65535 wrap around, causing allocation of a smaller buffer than the data actually read...

PT-2026-43711

An issue in fetch jpg in xdrv 10 scripter.ino in Tasmota through 15.3.0.3 allows a remote attacker to cause heap buffer overflow. The Content-Length from a JPEG stream is stored in a uint16 t variable; values above 65535 wrap around, causing allocation of a smaller buffer than the data actually...

CVE-2026-38427

An issue in fetchjpg in xdrv10scripter.ino in Tasmota through 15.3.0.3 allows a remote attacker to cause heap buffer overflow. The Content-Length from a JPEG stream is stored in a uint16t variable; values above 65535 wrap around, causing allocation of a smaller buffer than the data actually read...

CVE-2026-38422: Stack-based Buffer Overflow

Buffer Overflow vulnerability in arendst Tasmota v.15.3.0.3 and before allows a remote attacker to execute arbitrary code via the tasmota/tasmotaxdrvdriver/xdrv10scripter.ino, fetchjpg function...

CVE-2026-38426

Buffer Overflow vulnerability in arendst Tasmota v.15.3.0.3 and before allows a remote attacker to execute arbitrary code via the xdrv10scripter.ino, fetchjpg, jpgtask.boundary40, strcpy function...