---
id: CVE-2025-15083
title: A vulnerability was determined in TOZED ZLT M30s up to 1.47
summary: >-
  A vulnerability was determined in TOZED ZLT M30s up to 1.47. The affected
  element is an unknown function of the component UART Interface. Executing
  manipulation can lead to on-chip debug and test interface with improper access
  control. T…
severity: low
cvss: 2
cvssVector: 'CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N'
cwe:
  - CWE-1191
vendor: gztozed
product: zlt_m30s_firmware
affected:
  - zlt_m30s_firmware <= 1.47
published: '2025-12-25'
updated: '2026-10-07'
sourceUpdated: '2026-10-07T13:10:00.713'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-15083'
references:
  - url: 'https://hacklab.eu.org/blogs/zlt_m30s_debug_interface'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/?ctiid.338411'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/?id.338411'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/?submit.707974'
    label: cna@vuldb.com
tags:
  - nvd
epss: 0.00265
epssPercentile: 0.16828
ingestedAt: '2026-10-07T13:31:04.568Z'
---

## Overview

A vulnerability was determined in TOZED ZLT M30s up to 1.47. The affected element is an unknown function of the component UART Interface. Executing manipulation can lead to on-chip debug and test interface with improper access control. The physical device can be targeted for the attack. Attacks of this nature are highly complex. The exploitability is described as difficult. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

## Affected

- `zlt_m30s_firmware <= 1.47`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.