CVE-2026-38427

HIGH EPSS 36.5%
Published May 27, 20261mo ago · Modified Jun 17, 20261w ago
7.3 CVSS 3.1
High
Find Similar
Published May 27, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
7.3
Exploitability
3.9
Impact
3.4
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity Low
Availability Low

Threat Intelligence

EPSS Exploit Probability
36.5% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-122

References 2

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

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.