CVE-2022-45790: omron cj-series and cs-series cpu modules
CVSS: 9.1v3.1CriticalModified
Published 22-01-2024Last modified 13-11-2024
Vulnerability summary
CVE-2022-45790 is a critical (CVSS 9.1) vulnerability in omron cj-series and cs-series cpu modules. EPSS estimates a 0.91% chance of exploitation in the next 30 days, higher than 59.3% of scored vulnerabilities.
CVSS score
9.1/10
010
Critical · v3.1 (NVD)EPSS score
0.91%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 22-01-2024PublishedVulnerability first disclosed.
- 13-11-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
2 scores · 2 sources · 1 versionCritical 9.1Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:NSources2 sources · 8.6–9.1
- CVE.orgCNA8.6HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:NDiffers
EPSS trend
Probability
0.91%
Chance of exploitation in the next 30 days
Percentile
59%
Versus all other CVEs
30-day change
0.00 pp
From 0.91% on 21-09-2026
21-09-202621-10-2026
EPSS score0.91%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Omron47 products
- cj-series and cs-series cpu modules≥ CJ2H 0.0, < 1.5 | ≥ CJ2M 0.0, < 2.1 | ≥ CJ1G 0.0, < 4.1 | ≥ CS1H 0.0, < 4.1 | ≥ CS1G 0.0, < 4.1 | ≥ CS1D-H 0.0, < 1.4 | ≥ CP1E-E 0.0, < 1.3 | ≥ CP1E-N 0.0, < 1.3 | ≥ CS1D-P 0.0, < 1.4
- cj1g-cpu42p_firmware< 4.1
- cj1g-cpu43p_firmware< 4.1
- cj1g-cpu44p_firmware< 4.1
- cj1g-cpu45p_firmware< 4.1
1 vendor · 47 products
