# Tasmota vulnerabilities

Source: https://junglewise.ai/threats/vendors/tasmota  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/vendors/tasmota.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 3 vulnerabilities in Tasmota: 0 in the last 7 days and 0 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-38427, was published on 27 May 2026. 1 technology has a page of its own.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 0
- All time: 3 (0 critical, 0 exploited in the wild)

## About Tasmota

Tasmota is an open-source project providing alternative firmware for ESP-based smart home devices.

## Latest Tasmota vulnerabilities

- [CVE-2026-38427: Arendst Tasmota heap buffer overflow in fetch_jpg](https://junglewise.ai/threats/cve-2026-38427-arendst-tasmota-heap-buffer-overflow-in-fetch-jpg) (info, CVSS 9.8, published 27 May 2026)
- [CVE-2026-38426: arendst Tasmota buffer overflow in fetch_jpg](https://junglewise.ai/threats/cve-2026-38426-arendst-tasmota-buffer-overflow-in-fetch-jpg) (info, CVSS 9.8, published 27 May 2026)
- [CVE-2026-38422: arendst Tasmota buffer overflow in fetch_jpg function](https://junglewise.ai/threats/cve-2026-38422-arendst-tasmota-buffer-overflow-in-fetch-jpg-function) (info, CVSS 9.8, published 27 May 2026)

## Most severe Tasmota vulnerabilities

- [CVE-2026-38427: Arendst Tasmota heap buffer overflow in fetch_jpg](https://junglewise.ai/threats/cve-2026-38427-arendst-tasmota-heap-buffer-overflow-in-fetch-jpg) (info, CVSS 9.8, published 27 May 2026)
- [CVE-2026-38426: arendst Tasmota buffer overflow in fetch_jpg](https://junglewise.ai/threats/cve-2026-38426-arendst-tasmota-buffer-overflow-in-fetch-jpg) (info, CVSS 9.8, published 27 May 2026)
- [CVE-2026-38422: arendst Tasmota buffer overflow in fetch_jpg function](https://junglewise.ai/threats/cve-2026-38422-arendst-tasmota-buffer-overflow-in-fetch-jpg-function) (info, CVSS 9.8, published 27 May 2026)

## Vulnerabilities per week

Nothing was published in the last eight weeks.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Tasmota technologies

- [Tasmota](https://junglewise.ai/threats/technologies/tasmota): 3 vulnerabilities

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Tasmota vulnerabilities", https://junglewise.ai/threats/vendors/tasmota, 9 November 2026.