CVE-2023-28399 json
Incorrect permission assignment for critical resource exists in CONPROSYS HMI System (CHS) versions prior to 3.5.3.
published 2023-06-01 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-32095
- cvss
- 7.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 7%
- public exploits
- 0
- none known
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.
Patch / fix
- contec conprosys_hmi_system 3.5.3
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 21 mo ago
Exploit prediction
0.18% chance of exploitation in the next 30 days, higher than 7% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| CNA | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
- Contec Co., Ltd. CONPROSYS HMI System (CHS)
Classification
- Weakness
-
- CWE-732 Incorrect Permission Assignment for Critical Resource
References
-
contec.com
/api/downloadlogger?download=/-/media/Contec/jp/support/security-info/contec_security_chs_230531_en.pdf
vendor-advisory
-
contec.com
/jp/api/downloadlogger?download=/-/media/Contec/jp/support/security-info/contec_security_chs_230531_jp.pdf
vendor-advisory
-
jvn.jp
/en/vu/JVNVU93372935/
third-party-advisory
Sources
- CVE List CVE-2023-28399
- NVD CVE-2023-28399
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