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Fencer Vulns
critical 9.4

CVE-2022-34151 json

Use of hard-coded credentials vulnerability exists in Machine automation controller NJ series all models V 1.48 and earlier, Machine automa…

published 2022-07-04 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-37166

cvss
9.4
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.3%
EPSS 1.3% chance of exploitation in 30 days, percentile 70%
public exploits
0
none known

Summary

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.

Patch / fix

  • omron nj301-1200_firmware 1.48

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-22-314-08 updated cvss 7.5

Omron NJ/NX-series Machine Automation Controllers

  • Omron NJ/NX-series Controllers and Software <= 1.28, <= 1.48, <= 1.49, <= 1.15
    affected: mitigation “NX7-series Machine Automation Controller: Update to version 1.29 or higher” ia.omron.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
5 mo ago

Exploit prediction

1.29% chance of exploitation in the next 30 days, higher than 70% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 9.4 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H
NVD 3.1 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 9.4 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Affected products

  • OMRON Corporation Machine automation controller NJ series, Machine automation controller NX series, Automation software 'Sysmac Studio', and Programmable Terminal (PT) NA series

Classification

Weakness
  • CWE-798 Use of Hard-coded Credentials

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.