CVE-2022-44456
CriticalCONPROSYS 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.
Published Dec 19, 2022 · Updated Apr 17, 2025
Key Facts
Patch immediately- CVE-2022-44456 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Conprosys Hmi System (Contec), CONPROSYS HMI System (CHS).
- It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
- EPSS estimates a 70% probability of exploitation in the next 30 days.
- Fixed versions are available, including Conprosys Hmi System <=3.4.4, Conprosys Hmi System 3.4.4.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
70%
Higher than 99.3% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
None known
Get the full CVE-2022-44456 brief as a PDF
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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.
Affected Products
2 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Conprosys Hmi SystemContec | See advisory | 3.4.4 |
| CONPROSYS HMI System (CHS) | >= Ver.3.4.4?and earlier | n/a |
Patched Releases
Conprosys Hmi System
<=3.4.4
Timeline
Publicly disclosed
Dec 19, 2022
Last updated
Apr 17, 2025
Weakness Type
- CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
References
- advisoryhttps://jvn.jp/en/vu/JVNVU96873821/index.html
- advisoryhttps://www.contec.com/api/downloadlogger?download=/-/media/Contec/jp/support/security-info/contec_security_chs_221014_en.pdf
- patchhttps://www.contec.com/download/contract/contract4/?itemid=ea8039aa-3434-4999-9ab6-897aa690210c&downloaditemid=866d7d3c-aae9-438d-87f3-17aa040df90b
FAQ
Common Questions.
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.
Affected: Conprosys Hmi System (Contec); CONPROSYS HMI System (CHS) versions >= Ver.3.4.4?and earlier. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including Conprosys Hmi System <=3.4.4, Conprosys Hmi System 3.4.4.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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