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No exploitation reported

CVE-2022-33971

No exploitation reported by the sources we read.

  • Published2022-07-04
  • WeaknessCWE-294 · CWE-489

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Authentication bypass by capture-replay vulnerability exists in Machine automation controller NX7 series all models V1.28 and earlier, Machine automation controller NX1 series all models V1.48 and earlier, and Machine automation controller NJ series all models V 1.48 and earlier, which may allow an adjacent attacker who can analyze the communication between the controller and the specific software used by OMRON internally to cause a denial-of-service (DoS) condition or execute a malicious program.

Timeline

dates in UTC
  1. 2022-07-0402:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2022-33971?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-33971?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Omron nj-pa3001 firmwareversion to verify
BranchAffectedFixed in
1.48≤ 1.48no fix published
Omron nj-pd3001 firmwareversion to verify
BranchAffectedFixed in
1.48≤ 1.48no fix published
Omron nj101-1000 firmwareversion to verify
BranchAffectedFixed in
1.48≤ 1.48no fix published

49 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

  • ICSA-22-314-07 CISA3 known affected

    Omron NJ/NX-series Machine Automation Controllers

    NJ/NX-series Machine Automation Controllers - NX7-series Machine Automation Controller (All Models): Versions 1.28 and prior · NJ/NX-series Machine Automation Controllers - NX1-series Machine Automation Controller (All Models): Versions 1.48 and prior · NJ/NX-series Machine Automation Controllers - NJ-series Machine Automation Controller (All Models): Versions 1.48 and prior

Full record on NVD

Fix

  1. Mitigation from the vendor CISA ICSA-22-314-07 · 3 productsOmron recommends updating versions of NJ/NX-series machine automation controllers to address this vulnerability. These updates are available to users by contacting their Omron or distributors:
  2. Mitigation from the vendor CISA ICSA-22-314-07 · 3 productsNX7-series Machine Automation Controller (All Models): Versions 1.29 or higher
  3. Mitigation from the vendor CISA ICSA-22-314-07 · 3 productsNX1-series Machine Automation Controller (All Models): Versions 1.50 or higher
  4. Mitigation from the vendor CISA ICSA-22-314-07 · 3 productsNJ-series Machine Automation Controller (NJ501-1300, NJ501-1400, NJ501-1500): Versions 1.49 or higher
  5. Mitigation from the vendor CISA ICSA-22-314-07 · 3 productsNJ-series Machine Automation Controller (All other Models): Versions 1.50 or higher
  6. Mitigation from the vendor CISA ICSA-22-314-07 · 3 productsEnable antivirus protection:

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

  • CISA-ADPSSVC decisionnone2026-06-02
  • OpenCVESSVC decisionnone—
  • CISA-ADPCVSS 3.18.32026-06-02
  • NVDCVSS 3.17.5read 2026-10-23
  • NVDCVSS 2.05.4read 2026-10-23
  • CISA-ADPweakness (CWE)CWE-4892026-06-02
  • NVDweakness (CWE)CWE-294read 2026-10-23
  • FIRST EPSSEPSS score1.2 %2026-10-23

Technical details

CVSS v3 Vector
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2022-07-04
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2022-33971?

Authentication bypass by capture-replay vulnerability exists in Machine automation controller NX7 series all models V1.28 and earlier, Machine automation controller NX1 series all models V1.48 and earlier, and Machine automation controller NJ series all models V 1.48 and earlier, which may allow an adjacent attacker who can analyze the communication between the controller and the specific software used by OMRON internally to cause a denial-of-service (DoS) condition or execute a malicious program.

Is CVE-2022-33971 actively exploited?

Active exploitation of CVE-2022-33971 has not been confirmed. Its EPSS score was 1.2% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-33971?

CVE-2022-33971 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

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