CVE-2022-44456

Name: CVE-2022-44456
Creator: NVD / NIST
Published: 2022-12-19T03:15:10.69+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 69.88%

Last modified Jun 17, 2026

CVE-2022-44456 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. CONPROSYS HMI System (CHS) Ver.3.4.4?and earlier allows a remote unauthenticated attacker to execute an arbitrary OS command on the server where the product is running by sending a specially crafted request.. EPSS estimates a 69.88% chance of exploitation in the next 30 days.

Description

CONPROSYS HMI System (CHS) Ver.3.4.4?and earlier allows a remote unauthenticated attacker to execute an arbitrary OS command on the server where the product is running by sending a specially crafted request.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

69.88%

99.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Contec	Conprosys Hmi System	<= 3.4.4

References

https://jvn.jp/en/vu/JVNVU96873821/index.htmlThird Party Advisory, VDB Entry
https://www.contec.com/api/downloadlogger?download=/-/media/Contec/jp/support/security-info/contec_security_chs_221014_en.pdfVendor 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/JVNVU96873821/index.htmlThird Party Advisory, VDB Entry
https://www.contec.com/api/downloadlogger?download=/-/media/Contec/jp/support/security-info/contec_security_chs_221014_en.pdfVendor Advisory
https://www.contec.com/download/contract/contract4/?itemid=ea8039aa-3434-4999-9ab6-897aa690210c&downloaditemid=866d7d3c-aae9-438d-87f3-17aa040df90bPatch, Vendor Advisory

Timeline

Published: Dec 19, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-44456?

How severe is CVE-2022-44456?

CVE-2022-44456 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 69.88% probability of exploitation in the next 30 days.

How do I fix CVE-2022-44456?

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-2022-44456?

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

Scan your code now

Source: NVD / NIST