CVE-2022-34151Known exploitationNetwork attack vector

Unauthorized controller operation via hard-coded credentials

Published Jul 4, 2022 · Updated Jun 2, 2026

Hard-coded credentials in OMRON NJ, NX7, NX1, Sysmac Studio, and NA-series products allow remote attackers to access controllers. The communications connection process relies on credentials embedded in the affected product, so credentials recovered through product analysis bypass authentication. No prior account or user interaction is required once the credentials are obtained, and the resulting session permits unauthorized controller operation.

CVSS severity9.4
Critical
EPSS probability1.42%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Hard-coded credentials in OMRON NJ, NX7, NX1, Sysmac Studio, and NA-series products allow remote attackers to access controllers. The communications connection process relies on credentials embedded in the affected product, so credentials recovered through product analysis bypass authentication. No prior account or user interaction is required once the credentials are obtained, and the resulting session permits unauthorized controller operation.

The record

CVE
CVE-2022-34151
Published
Jul 4, 2022
Updated
Jun 2, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-798, CAPEC-191, CAPEC-70, T1694.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 4, 2022CVE publishedPublication date reported by the CVE source.
  2. Jun 2, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.8NIST NVDAV:N/AC:M/Au:N/C:P/I:P/A:P
9.4CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H
8.1NIST NVDCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
9.4OMRON CorporationCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationReported
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-798Use of Hard-coded Credentials
CAPEC-191Read Sensitive Constants Within an Executable
CAPEC-70Try Common or Default Usernames and Passwords
T1694.002Insecure Credentials: Hardcoded Credentials

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

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Your stack

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