CVE-2026-38422 Details
Description
Buffer Overflow vulnerability in arendst Tasmota v.15.3.0.3 and before allows a remote attacker to execute arbitrary code via the tasmota/tasmota_xdrv_driver/xdrv_10_scripter.ino, fetch_jpg() function.
A buffer overflow vulnerability has been identified in Arendst Tasmota versions through 15.3.0.3. This vulnerability allows remote code execution on ESP32-based devices. The issue arises in the 'fetch_jpg()' function within the 'xdrv_10_scripter.ino' file, where improper handling of data can lead to memory corruption and exploitation.
Users can upgrade to Tasmota version 15.3.0.4 or later, where this vulnerability has been patched.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed May 27, 2026CISA-ADP
Assessed May 28, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/sermikr0/CVE-2026-38422 | CISA-ADP | BundleExploitRemedy |
| https://github.com/arendst/Tasmota | [email protected] | Vendor |
| https://github.com/arendst/Tasmota/blob/development/tasmota/tasmota_xdrv_driver/xdrv_10_scripter.ino | [email protected] | Source CodeVendor |
| https://github.com/sermikr0/CVE-2026-38422 | [email protected] | BundleExploitRemedy |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-121 | Stack-based Buffer Overflow | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| arendst Tasmota | <= 15.3.0.3 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 28, 2026 | CVE Modified | CISA-ADP |
| May 27, 2026 | New CVE Received | [email protected] |
Volerion