CVE-2026-38427

HIGH SEVERITY

CVSS Score & Metrics

Base Score

7.3 / 10

Vector String

                                        CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L                                    

Vulnerability Description

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 read.

Vulnerability Details

Published Date

May 27, 2026

Last Modified

May 27, 2026

CWE ID

CWE-122

Source

NVD

External References

https://github.com/arendst/Tasmota/blob/c207cc2/tasmota/tasmota_xdrv_driver/xdrv_10_scripter.ino
https://github.com/sermikr0/CVE-2026-38427

CVE-2026-38427

CVSS Score & Metrics

Vulnerability Description

Vulnerability Details

External References

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