CVE-2023-28657

HIGH

CONPROSYS HMI System <3.5.3 - Privilege Escalation

Title source: llm

Description

Improper access control vulnerability exists in CONPROSYS HMI System (CHS) versions prior to 3.5.3. A user of the PC where the affected product is installed may gain an administrative privilege. As a result, information regarding the product may be obtained and/or altered by the user.

References (3)

Core 3

Core References

Third Party Advisory

https://jvn.jp/en/vu/JVNVU93372935/

Vendor Advisory

https://www.contec.com/api/downloadlogger?download=/-/media/Contec/jp/support/security-info/contec_security_chs_230531_en.pdf

Vendor Advisory

https://www.contec.com/jp/api/downloadlogger?download=/-/media/Contec/jp/support/security-info/contec_security_chs_230531_jp.pdf

Scores

CVSS v3 8.8

EPSS 0.0071

EPSS Percentile 49.0%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-862

Status published

Products (1)

contec/conprosys_hmi_system < 3.5.3

Published Jun 01, 2023

Tracked Since Feb 18, 2026