CVE-2022-45790
CVE-2022-45790 is a high-severity vulnerability in Omron Cj1g-cpu45p Firmware with a CVSS 3.x base score of 8.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-307.
Key facts
- Severity: High (CVSS 3.x base score 8.6)
- EPSS exploit prediction: 1% (49th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2022-48646
- Weakness: CWE-307
- Affected product: Omron Cj1g-cpu45p Firmware
- Published:
- Last modified:
Description
The Omron FINS protocol has an authenticated feature to prevent access to memory regions. Authentication is susceptible to bruteforce attack, which may allow an adversary to gain access to protected memory. This access can allow overwrite of values including programmed logic.
Frequently asked questions
- What is CVE-2022-45790?
- The Omron FINS protocol has an authenticated feature to prevent access to memory regions. Authentication is susceptible to bruteforce attack, which may allow an adversary to gain access to protected memory. This access can allow overwrite of values including programmed logic.
- How severe is CVE-2022-45790?
- CVE-2022-45790 has a CVSS 3.x base score of 8.6, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
- Is CVE-2022-45790 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2022-45790?
- CVE-2022-45790 primarily affects Omron Cj1g-cpu45p Firmware. In total, 46 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2022-45790?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2022-45790 have an EU (EUVD) identifier?
- Yes. CVE-2022-45790 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2022-48646.
- When was CVE-2022-45790 published?
- CVE-2022-45790 was published on 2024-01-22 and last updated on 2026-06-17.
References
- https://www.cisa.gov/news-events/ics-advisories/icsa-23-262-05
- https://www.dragos.com/advisory/omron-plc-and-engineering-software-network-and-file-format-access/
- https://www.fa.omron.co.jp/product/security/assets/pdf/en/OMSR-2023-010_en.pdf
Affected products (46)
- cpe:2.3:o:omron:cj1g-cpu45p_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:omron:cj1g-cpu45p-gtc_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:omron:cj1g-cpu44p_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:omron:cj1g-cpu43p_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:omron:cj1g-cpu42p_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:omron:cp1e-e_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:omron:cp1e-n_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:omron:cj2h-cpu68_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:omron:cj2h-cpu67_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:omron:cj2h-cpu66_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:omron:cj2h-cpu65_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:omron:cj2h-cpu64_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:omron:cj2h-cpu68-eip_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:omron:cj2h-cpu67-eip_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:omron:cj2h-cpu66-eip_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:omron:cj2h-cpu65-eip_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:omron:cj2h-cpu64-eip_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:omron:cj2m-cpu35_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:omron:cj2m-cpu34_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:omron:cj2m-cpu33_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:omron:cj2m-cpu32_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:omron:cj2m-cpu31_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:omron:cj2m-cpu15_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:omron:cj2m-cpu14_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:omron:cj2m-cpu13_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:omron:cj2m-cpu12_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:omron:cj2m-cpu11_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:omron:cj2m-md211_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:omron:cj2m-md212_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:omron:cs1d-cpu67s_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:omron:cs1d-cpu65s_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:omron:cs1d-cpu44s_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:omron:cs1d-cpu42s_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:omron:cs1d-cpu65p_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:omron:cs1d-cpu67p_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:omron:cs1d-cpu67h_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:omron:cs1d-cpu65h_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:omron:cs1h-cpu67h_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:omron:cs1h-cpu66h_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:omron:cs1h-cpu65h_firmware:*:*:*:*:*:*:*:*
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