Incorrect permission assignment in Contec Co., Ltd. CONPROSYS HMI System
Priority LOW 35CWE-732Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
Incorrect permission assignment for critical resource exists in CONPROSYS HMI System (CHS) versions prior to 3.5.3. ACL (Access Control List) is not appropriately set to the local folder where the affected product is installed, therefore a wide range of privileges is permitted to a user of the PC where the affected product is installed. As a result, the user may be able to destroy the system and/or execute a malicious program.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00182 7th percentileScored 2026-11-07
Fix Fixed CONPROSYS HMI System (CHS) (Contec Co., Ltd.): 3.5.3
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Contec Co., Ltd. | CONPROSYS HMI System (CHS) | before 3.5.3 | 3.5.3 | Patch available | CNA |
- CONPROSYS HMI System (CHS) VendorContec Co., Ltd. Affected before 3.5.3 Fixed in 3.5.3 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:contec:conprosys_hmi_system:*:*:*:*:*:*:*:* | before 3.5.3 | Vulnerable | Contec Co., Ltd. |
- cpe:2.3:a:contec:conprosys_hmi_system:*:*:*:*:*:*:*:* Versions before 3.5.3 Vulnerable ·Contec Co., Ltd.
Remediation
- Fix · CNA CONPROSYS HMI System (CHS) (Contec Co., Ltd.) Fixed in 3.5.3
Timeline
- 2026-10-02 Threatist record created from CVE-2023-28399
- 2026-10-03 Alias added: GHSA-vwgg-32x4-wm56
References
More Contec Co., Ltd. Conprosys Hmi System vulnerabilities
- TI-2022-21852 OS command injection in Contec Co., Ltd. CONPROSYS HMI System CVSS 3.1CRITICAL 9.8
- TI-2023-13585 SQL injection in Contec Co., Ltd. CONPROSYS HMI System CVSS 3.1HIGH 7.2
- TI-2023-13169 Cross-site scripting in Contec Co., Ltd. CONPROSYS HMI System CVSS 3.1MEDIUM 4.8
- TI-2023-13175 Missing authorization in Contec Co., Ltd. CONPROSYS HMI System CVSS 3.1HIGH 8.8
- TI-2023-08595 Improper privilege management in Contec Co., Ltd. CONPROSYS HMI System CVSS 3.1HIGH 7.5
- TI-2023-13230 Cleartext storage of sensitive information in Contec Co., Ltd. CONPROSYS HMI System CVSS 3.1HIGH 8.1
Sources
- CVE-2023-28399 · CVE Program
- CVE-2023-28399 · NVD
- FIRST EPSS
- GHSA-vwgg-32x4-wm56 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences