What’s Vulnerable › Vulnerabilities

CVE-2022-34151

• Severity: high (CVSS 8.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-07-04 · updated 2026-06-17
• Weakness: CWE-798

Description

Use of hard-coded credentials vulnerability exists in Machine automation controller NJ series all models V 1.48 and earlier, Machine automation controller NX7 series all models V1.28 and earlier, Machine automation controller NX1 series all models V1.48 and earlier, Automation software 'Sysmac Studio' all models V1.49 and earlier, and Programmable Terminal (PT) NA series NA5-15W/NA5-12W/NA5-9W/NA5-7W models Runtime V1.15 and earlier, which may allow a remote attacker who successfully obtained the user credentials by analyzing the affected product to access the controller.

Affected products

• Omron Na5-12W Firmware: through 1.15
• Omron Na5-15W Firmware: through 1.15
• Omron Na5-7W Firmware: through 1.15
• Omron Na5-9W Firmware: through 1.15
• Omron Nj-Pa3001 Firmware: through 1.48
• Omron Nj-Pd3001 Firmware: through 1.48
• Omron Nj101-1000 Firmware: through 1.48
• Omron Nj101-1020 Firmware: through 1.48
• Omron Nj101-9000 Firmware: through 1.48
• Omron Nj101-9020 Firmware: through 1.48
• Omron Nj301-1100 Firmware: through 1.48
• Omron Nj301-1200 Firmware: before 1.48 — fixed in 1.48
• Omron Nj501-1300 Firmware: through 1.48
• Omron Nj501-1320 Firmware: through 1.48
• Omron Nj501-1340 Firmware: through 1.48
• Omron Nj501-140 Firmware: through 1.48
• Omron Nj501-1420 Firmware: through 1.48
• Omron Nj501-1500 Firmware: through 1.48
• Omron Nj501-1520 Firmware: through 1.48
• Omron Nj501-4300 Firmware: through 1.48
• Omron Nj501-4310 Firmware: through 1.48
• Omron Nj501-4320 Firmware: through 1.48
• Omron Nj501-4400 Firmware: through 1.48
• Omron Nj501-4500 Firmware: through 1.48
• Omron Nj501-5300 Firmware: through 1.48
• Omron Nj501-R300 Firmware: through 1.48
• Omron Nj501-R320 Firmware: through 1.48
• Omron Nj501-R400 Firmware: through 1.48
• Omron Nj501-R420 Firmware: through 1.48
• Omron Nj501-R500 Firmware: through 1.48

How to fix

Upgrade to a fixed version: Omron Nj301-1200 Firmware 1.48. Check the vendor advisory for mitigations.

References

• https://jvn.jp/en/vu/JVNVU97050784/index.html
• https://www.ia.omron.com/product/vulnerability/OMSR-2022-001_en.pdf
• https://jvn.jp/en/vu/JVNVU97050784/index.html
• https://www.ia.omron.com/product/vulnerability/OMSR-2022-001_en.pdf

Get alerted when CVE-2022-34151 or the next vulnerability affects your stack