CVE-2022-45794

HIGHNVD 8.68.6—

8.6

An attacker with network access to the affected PLC (CJ-series and CS-series PLCs, all versions) may use a network protocol to read and write files on the PLC internal memory and memory card.

CVSS v3: 8.6
EG Score: 8.6(medium)
EPSS: 38.4%
KEV: Not listed

Published

January 10, 2024

Last Modified

November 21, 2024

References (4)

ot-cert@dragoshttps://www.dragos.com/advisory/omron-plc-and-engineering-software-network-and-file-format-access/
ot-cert@dragoshttps://www.fa.omron.co.jp/product/security/assets/pdf/en/OMSR-2023-002_en.pdf
af854a3a-2127-422b-91ae-364da2661108https://www.dragos.com/advisory/omron-plc-and-engineering-software-network-and-file-format-access/
af854a3a-2127-422b-91ae-364da2661108https://www.fa.omron.co.jp/product/security/assets/pdf/en/OMSR-2023-002_en.pdf

Weakness Classification(1)

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

CWE-306Missing Authentication for Critical Function

Data Freshness Timeline

(refreshed 10× 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.

2026-06-04 13:11 UTCepss_batch
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Frequently asked(5)

What is CVE-2022-45794?

CVE-2022-45794 is a high vulnerability published on January 10, 2024. An attacker with network access to the affected PLC (CJ-series and CS-series PLCs, all versions) may use a network protocol to read and write files on the PLC internal memory and memory card.

When was CVE-2022-45794 disclosed?

CVE-2022-45794 was first published in the National Vulnerability Database on January 10, 2024, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2022-45794 actively exploited?

CVE-2022-45794 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 38.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2022-45794?

CVE-2022-45794 has a CVSS v3 base score of 8.6 (NVD).

How do I remediate CVE-2022-45794?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-45794, 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-2022-45794

📅 Published

🔄 Last Modified

🔗 References (4)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2022-45794?

🔗 Related CVEs(same CWE)

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Published

Last Modified

References (4)

Frequently asked(5)

Related CVEs(same CWE)