CVE-2025-15083

TOZED ZLT M30s UART on-chip debug and test interface with improper access control

Published Dec 25, 2025 CVSS 4.0 · 1 Low EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
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
Type Values Removed Values Added
Metrics ssvc

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

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

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulDB
Published
Updated
Dec 30, 2025, 9:09 PM
Reserved
Dec 25, 2025, 9:36 AM
Status
Analyzed
Published
Dec 25, 2025, 6:15 PM
Modified
Oct 7, 2026, 1:10 PM