CVE-2022-44456

CRITICALNVD 9.89.8—Elevated

9.8

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.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 96.3%
KEV: Not listed

Published

December 19, 2022

Last Modified

April 17, 2025

References (6)

vultures@jpcerthttps://jvn.jp/en/vu/JVNVU96873821/index.html
vultures@jpcerthttps://www.contec.com/api/downloadlogger?download=/-/media/Contec/jp/support/security-info/contec_security_chs_221014_en.pdf
vultures@jpcerthttps://www.contec.com/download/contract/contract4/?itemid=ea8039aa-3434-4999-9ab6-897aa690210c&downloaditemid=866d7d3c-aae9-438d-87f3-17aa040df90b
af854a3a-2127-422b-91ae-364da2661108https://jvn.jp/en/vu/JVNVU96873821/index.html
af854a3a-2127-422b-91ae-364da2661108https://www.contec.com/api/downloadlogger?download=/-/media/Contec/jp/support/security-info/contec_security_chs_221014_en.pdf
af854a3a-2127-422b-91ae-364da2661108https://www.contec.com/download/contract/contract4/?itemid=ea8039aa-3434-4999-9ab6-897aa690210c&downloaditemid=866d7d3c-aae9-438d-87f3-17aa040df90b

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-78OS Command Injection

Data Freshness Timeline

(refreshed 12× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-06 13:46 UTCepss_batch
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2026-05-27 13:39 UTCepss_batch
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2026-05-26 13:43 UTCepss_batch

Frequently asked(5)

What is CVE-2022-44456?

CVE-2022-44456 is a critical vulnerability published on December 19, 2022. 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.

When was CVE-2022-44456 disclosed?

CVE-2022-44456 was first published in the National Vulnerability Database on December 19, 2022, with the most recent update on April 17, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2022-44456 actively exploited?

CVE-2022-44456 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 96.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2022-44456?

CVE-2022-44456 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2022-44456?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-44456, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2022-44456

📅 Published

🔄 Last Modified

🔗 References (6)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2022-44456?

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Published

Last Modified

References (6)

Frequently asked(5)

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