TOZED ZLT M30s UART on-chip debug and test interface with improper access control
Summary
| CVE | CVE-2025-15083 |
|---|---|
| State | PUBLISHED |
| Assigner | VulDB |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2025-12-25 18:15:40 UTC |
| Updated | 2026-04-29 01:00:01 UTC |
| 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. |
Risk And Classification
Primary CVSS: v4.0 0.3 LOW from [email protected]
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Problem Types: CWE-1191 | CWE-1191 On-Chip Debug and Test Interface With Improper Access Control
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | [email protected] | Secondary | 0.3 | LOW | 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/C... |
| 4.0 | CNA | DECLARED | 1 | LOW | 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 |
| 3.1 | [email protected] | Primary | 4.6 | MEDIUM | CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| 3.1 | [email protected] | Secondary | 2 | LOW | CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N |
| 3.1 | CNA | DECLARED | 2 | LOW | 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 |
| 3.0 | CNA | DECLARED | 2 | LOW | 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 |
| 2.0 | [email protected] | Secondary | 1.2 | AV:L/AC:H/Au:N/C:P/I:N/A:N | |
| 2.0 | CNA | DECLARED | 1.2 | AV:L/AC:H/Au:N/C:P/I:N/A:N/E:POC/RL:ND/RC:UR |
CVSS v4.0 Breakdown
Attack Vector
PhysicalAttack Complexity
HighAttack Requirements
NonePrivileges Required
NoneUser Interaction
NoneConfidentiality
LowIntegrity
NoneAvailability
NoneSub Conf.
NoneSub Integrity
NoneSub Availability
NoneCVSS: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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS v3.1 Breakdown
Attack Vector
PhysicalAttack Complexity
LowPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
NoneAvailability
NoneCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS v3.0 Breakdown
Attack Vector
PhysicalAttack Complexity
HighPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
LowIntegrity
NoneAvailability
NoneCVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Hardware | Gztozed | Zlt M30s | - | All | All | All |
| Operating System | Gztozed | Zlt M30s Firmware | All | All | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | TOZED | ZLT M30s | affected 1.0 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.1 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.2 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.3 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.4 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.5 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.6 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.7 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.8 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.9 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.10 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.11 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.12 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.13 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.14 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.15 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.16 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.17 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.18 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.19 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.20 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.21 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.22 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.23 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.24 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.25 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.26 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.27 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.28 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.29 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.30 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.31 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.32 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.33 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.34 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.35 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.36 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.37 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.38 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.39 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.40 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.41 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.42 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.43 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.44 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.45 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.46 | Not specified |
| CNA | TOZED | ZLT M30s | affected 1.47 | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| vuldb.com | [email protected] | vuldb.com | Third Party Advisory, VDB Entry |
| vuldb.com | [email protected] | vuldb.com | Permissions Required, VDB Entry |
| hacklab.eu.org/blogs/zlt_m30s_debug_interface | [email protected] | hacklab.eu.org | Exploit, Third Party Advisory |
| vuldb.com | [email protected] | vuldb.com | Third Party Advisory, VDB Entry |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: S33K3R (VulDB User) (en)
Additional Advisory Data
| Source | Time | Event |
|---|---|---|
| CNA | 2025-12-25T00:00:00.000Z | Advisory disclosed |
| CNA | 2025-12-25T01:00:00.000Z | VulDB entry created |
| CNA | 2025-12-25T10:42:28.000Z | VulDB entry last update |
There are currently no legacy QID mappings associated with this CVE.