FNKvision FNK-GU2 up to 40.1.7 UART Interface on-chip debug and test interface with improper access control
Summary
A vulnerability categorized as critical has been discovered in FNKvision FNK-GU2 up to 40.1.7. Affected by this issue is some unknown functionality of the component UART Interface. The manipulation results in on-chip debug and test interface with improper access control. This vulnerability is reported as CVE-2025-7213. An attack on the physical device is feasible. Moreover, an exploit is present.
Details
A vulnerability classified as critical has been found in FNKvision FNK-GU2 up to 40.1.7. Affected is an unknown functionality of the component UART Interface. The manipulation with an unknown input leads to a on-chip debug and test interface with improper access control vulnerability. CWE is classifying the issue as CWE-1191. The chip does not implement or does not correctly perform access control to check whether users are authorized to access internal registers and test modes through the physical debug/test interface. This is going to have an impact on confidentiality, integrity, and availability.
The advisory is available at medium.com. This vulnerability is traded as CVE-2025-7213. The exploitability is told to be difficult. Local access is required to approach this attack. The exploitation doesn't require any form of authentication. Technical details are unknown but a public exploit is available.
The exploit is shared for download at medium.com. It is declared as proof-of-concept.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-20772). If you want to get best quality of vulnerability data, you may have to visit VulDB.
Product
Vendor
Name
Version
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒
CVSSv3
VulDB Meta Base Score: 6.4VulDB Meta Temp Score: 6.1
VulDB Base Score: 6.4
VulDB Temp Score: 5.8
VulDB Vector: 🔒
VulDB Reliability: 🔍
CNA Base Score: 6.4
CNA Vector: 🔒
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: On-chip debug and test interface with improper access controlCWE: CWE-1191
CAPEC: 🔒
ATT&CK: 🔒
Physical: Yes
Local: Yes
Remote: No
Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔒
Timeline
07/07/2025 Advisory disclosed07/07/2025 VulDB entry created
07/09/2025 VulDB entry last update
Sources
Advisory: medium.comStatus: Not defined
CVE: CVE-2025-7213 (🔒)
GCVE (CVE): GCVE-0-2025-7213
GCVE (VulDB): GCVE-100-315162
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 07/07/2025 15:24Updated: 07/09/2025 20:17
Changes: 07/07/2025 15:24 (54), 07/09/2025 14:33 (30), 07/09/2025 20:17 (1)
Complete: 🔍
Submitter: 0xHasta
Cache ID: 216::103
Submit
Accepted
- Submit #608025: FNKvision FNK-GU2 Wireless IP Camera Firmware version 40.1.7 and prior On-Chip Debug and Test Interface With Improper Access Control (C (by 0xHasta)
If you want to get best quality of vulnerability data, you may have to visit VulDB.
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