Security readout for executives and security teams
Plain-English summary
This flaw affects OMRON industrial automation controllers. An attacker who can observe certain controller communications may replay them to bypass authentication. The documented impact is severe: denial of service or execution of a malicious program. Sources do not show confirmed active exploitation.
Executive priority
Treat this as a high-priority OT risk where affected OMRON controllers support production, safety-adjacent, or revenue-critical processes. Urgency depends on whether vulnerable firmware is present and reachable from adjacent network positions.
Technical view
CVE-2022-33971 is an authentication bypass by capture-replay in OMRON NX7, NX1, and NJ machine automation controllers at the listed firmware versions or earlier. The CVSS 3.1 score is 8.3. Exploitation requires communication analysis between the controller and specific OMRON internal software, with CVSS indicating user interaction.
Likely exposure
Likely exposure is in OT and industrial sites running OMRON NX7 V1.28 or earlier, NX1 V1.48 or earlier, or NJ V1.48 or earlier. Internet exposure is not established by the provided sources.
Exploitation context
The source bundle does not cite KEV listing, public exploitation, or a published exploit. The scenario described is capture-replay by an adjacent attacker who can analyze relevant controller communications.
Researcher notes
Do not assume broad product impact beyond the listed OMRON controllers and versions. The affected-products text also names Sysmac Studio and NA series, but the provided vulnerability description gives specific vulnerable controller firmware ranges only.
Mitigation direction
- Inventory OMRON NX7, NX1, and NJ controllers and record firmware versions.
- Review OMRON advisory OMSR-2022-002 for vendor-approved fixes or mitigations.
- Prioritize updates or mitigations for affected controllers in production OT networks.
- Restrict controller communication paths to trusted engineering systems while awaiting vendor guidance.
Validation and detection
- Confirm whether deployed NX7 controllers are V1.28 or earlier.
- Confirm whether deployed NX1 and NJ controllers are V1.48 or earlier.
- Review OT network paths that allow controller communication observation or replay.
- Check whether compensating controls are documented and vendor-approved.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
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CWE-489: Exact CWE lookup
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Open ATT&CK lookupCredential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2022-33971 mapping review
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Open ATT&CK lookup- Severity
- High
- CVSS
- 8.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H1.66CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
8.3HighVector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://jvn.jp/en/vu/JVNVU97050784/index.htmlCVE reference, jpcert · x_refsource_MISC
- https://www.ia.omron.com/product/vulnerability/OMSR-2022-002_en.pdfCVE reference, jpcert · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Active Debug Code
Active Debug Code represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.