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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation poc

Automatable yes

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
n/a n/a affected
Version Status Constraints
n/a affected —

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Project Subscriptions

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Advisories

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/arendst/Tasmota/blob/c207cc2/tasmota/tasmota_xdrv_driver/xdrv_10_scripter.ino cve-icon cve-icon
https://github.com/sermikr0/CVE-2026-38426 cve-icon cve-icon cve-icon
History

Wed, 27 May 2026 19:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-120
Metrics cvssV3_1

{'score': 7.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 27 May 2026 17:15:00 +0000

Type Values Removed Values Added
Title Buffer Overflow in Tasmota Scripter Allows Remote Code Execution
Weaknesses CWE-121

Wed, 27 May 2026 14:15:00 +0000

Type Values Removed Values Added
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.
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-05-27T18:19:03.125Z

Reserved: 2026-04-06T00:00:00.000Z

Link: CVE-2026-38426

cve-icon Vulnrichment

Updated: 2026-05-27T18:18:59.583Z

cve-icon NVD

Status : Received

Published: 2026-05-27T14:16:45.880

Modified: 2026-05-27T19:16:16.687

Link: CVE-2026-38426

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-27T17:00:17Z

Weaknesses