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CVE-2022-45790Omron FINS memory protection susceptible to bruteforce
- 8.6HighCVSS base score
- 0.91%Exploitation in 30 daysEPSS · top 40% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By Dragos
- 14 months later
· 14 months later
Published
- 10 months later
· 10 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| DragosCNA (assigner) | 3.1 | High8.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N |
| NVDNVD · Modified | 3.1 | Critical9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
- EPSS (exploitation in 30 days)
- 0.91% · top 40% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.6.
Affected products
Omron · CJ-series and CS-series CPU modules
- affected CJ2H 0.0 – < 1.5
- affected CJ2M 0.0 – < 2.1
- affected CJ1G 0.0 – < 4.1
- affected CS1H 0.0 – < 4.1
- affected CS1G 0.0 – < 4.1
- affected CS1D-H 0.0 – < 1.4
- affected CP1E-E 0.0 – < 1.3
- affected CP1E-N 0.0 – < 1.3
- affected CS1D-P 0.0 – < 1.4
References
References3
- https://www.cisa.gov/news-events/ics-advisories/icsa-23-262-05 (opens in a new tab)x_transferred
- https://www.fa.omron.co.jp/product/security/assets/pdf/en/OMSR-2023-010_en.pdf (opens in a new tab)x_transferred
- https://www.dragos.com/advisory/omron-plc-and-engineering-software-network-and-file-format-access/ (opens in a new tab)x_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2022-48646 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://cveledger.app/cve/CVE-2022-45790)Record last updated .