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.

Metrics

Attack Vector Physical

Attack Complexity High

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Physical

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

Attack Vector Physical

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

Access Vector Local

Access Complexity High

Authentication None

Confidentiality Impact Partial

Integrity Impact None

Availability Impact None

This CVE is not in the KEV list.

The EPSS score is 0.00018.

Exploitation poc

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Gztozed Subscribe
Zlt M30s Subscribe
Zlt M30s Firmware Subscribe
Tozed Subscribe
Zlt M30s Subscribe

Configuration 1 [-]

AND
cpe:2.3:o:gztozed:zlt_m30s_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:gztozed:zlt_m30s:-:*:*:*:*:*:*:*

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

Vendors Products
Tozed Subscribe
Zlt M30s Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://hacklab.eu.org/blogs/zlt_m30s_debug_interface cve-icon cve-icon
https://vuldb.com/?ctiid.338411 cve-icon cve-icon
https://vuldb.com/?id.338411 cve-icon cve-icon
https://vuldb.com/?submit.707974 cve-icon cve-icon
History

Wed, 21 Jan 2026 04:45:00 +0900

Type Values Removed Values Added
First Time appeared Gztozed
Gztozed zlt M30s
Gztozed zlt M30s Firmware
CPEs cpe:2.3:h:gztozed:zlt_m30s:-:*:*:*:*:*:*:*
cpe:2.3:o:gztozed:zlt_m30s_firmware:*:*:*:*:*:*:*:*
Vendors & Products Gztozed
Gztozed zlt M30s
Gztozed zlt M30s Firmware

Wed, 31 Dec 2025 06:15:00 +0900

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Tue, 30 Dec 2025 08:15:00 +0900

Type Values Removed Values Added
First Time appeared Tozed
Tozed zlt M30s
Vendors & Products Tozed
Tozed zlt M30s

Fri, 26 Dec 2025 02:45:00 +0900

Type Values Removed Values Added
Description 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.
Title TOZED ZLT M30s UART on-chip debug and test interface with improper access control
Weaknesses CWE-1191
References
Metrics cvssV2_0

{'score': 1.2, 'vector': 'AV:L/AC:H/Au:N/C:P/I:N/A:N/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 2, 'vector': 'CVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 2, 'vector': 'CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 1, 'vector': 'CVSS:4.0/AV:P/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2025-12-30T21:09:24.413Z

Reserved: 2025-12-25T09:36:38.360Z

Link: CVE-2025-15083

cve-icon Vulnrichment

Updated: 2025-12-30T21:09:21.540Z

cve-icon NVD

Status : Analyzed

Published: 2025-12-25T18:15:40.173

Modified: 2026-01-20T19:35:29.543

Link: CVE-2025-15083

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-12-30T07:33:36Z

Weaknesses