CVE-2023-22339

Description

Improper access control vulnerability in CONPROSYS HMI System (CHS) Ver.3.4.5 and earlier allows a remote unauthenticated attacker to bypass access restriction and obtain the server certificate including the private key of the product.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.29%
Vendor Advisory contec.com Vendor Advisory contec.com
Affected: Contec Co., Ltd. CONPROSYS HMI System (CHS)
Published at:
Updated at:

References

Link Tags
https://www.contec.com/download/contract/contract4/?itemid=ea8039aa-3434-4999-9ab6-897aa690210c&downloaditemid=866d7d3c-aae9-438d-87f3-17aa040df90b patch vendor advisory
https://www.contec.com/api/downloadlogger?download=/-/media/Contec/jp/support/security-info/contec_security_chs_230110_en.pdf patch vendor advisory
https://jvn.jp/en/vu/JVNVU96873821 third party advisory patch
https://www.cisa.gov/uscert/ics/advisories/icsa-22-347-03 third party advisory us government resource

Frequently Asked Questions

What is the severity of CVE-2023-22339?
CVE-2023-22339 has been scored as a high severity vulnerability.
How to fix CVE-2023-22339?
To fix CVE-2023-22339, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-22339 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-22339 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-22339?
CVE-2023-22339 affects Contec Co., Ltd. CONPROSYS HMI System (CHS).
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.