CVE-2023-22331

Name: CVE-2023-22331
Creator: NVD / NIST
Published: 2023-01-20T03:15:09.813+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.01%

Last modified Jun 17, 2026

CVE-2023-22331 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Use of default credentials vulnerability in CONPROSYS HMI System (CHS) Ver.3.4.5 and earlier allows a remote unauthenticated attacker to alter user credentials information.. EPSS estimates a 1.01% chance of exploitation in the next 30 days.

Description

Use of default credentials vulnerability in CONPROSYS HMI System (CHS) Ver.3.4.5 and earlier allows a remote unauthenticated attacker to alter user credentials information.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

1.01%

58.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Contec	Conprosys Hmi System	<= 3.4.5

References

https://jvn.jp/en/vu/JVNVU96873821Patch, Third Party Advisory
https://www.cisa.gov/uscert/ics/advisories/icsa-22-347-03Third Party Advisory, US Government Resource
https://www.contec.com/api/downloadlogger?download=/-/media/Contec/jp/support/security-info/contec_security_chs_230110_en.pdfPatch, Vendor Advisory
https://www.contec.com/download/contract/contract4/?itemid=ea8039aa-3434-4999-9ab6-897aa690210c&downloaditemid=866d7d3c-aae9-438d-87f3-17aa040df90bPatch, Vendor Advisory
https://jvn.jp/en/vu/JVNVU96873821Patch, Third Party Advisory
https://www.cisa.gov/uscert/ics/advisories/icsa-22-347-03Third Party Advisory, US Government Resource
https://www.contec.com/api/downloadlogger?download=/-/media/Contec/jp/support/security-info/contec_security_chs_230110_en.pdfPatch, Vendor Advisory
https://www.contec.com/download/contract/contract4/?itemid=ea8039aa-3434-4999-9ab6-897aa690210c&downloaditemid=866d7d3c-aae9-438d-87f3-17aa040df90bPatch, Vendor Advisory

Timeline

Published: Jan 20, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-22331?

Use of default credentials vulnerability in CONPROSYS HMI System (CHS) Ver.3.4.5 and earlier allows a remote unauthenticated attacker to alter user credentials information.

How severe is CVE-2023-22331?

CVE-2023-22331 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.01% probability of exploitation in the next 30 days.

How do I fix CVE-2023-22331?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-22331?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST