CVE-2026-33367 (GCVE-0-2026-33367)
Vulnerability from cvelistv5 – Published: 2026-10-09 14:38 – Updated: 2026-10-09 14:38
VLAI
EPSS
VEX
Title
Red Lion Controls N-Tron 700 Series Missing Authentication for Critical Function
Summary
SNMP can be used to perform administrative actions such as retrieving configuration files, modifying user accounts or device settings, and initiating firmware or bootloader upgrades or downgrades—all without any authentication.
Severity
8.1 (High)
CWE
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Red Lion Controls | 700 Series |
Affected:
0 , < Firmware Versions 3.11.0
(custom)
Affected: 0 , < Bootloader Versions 2.0.6.1 (custom) Unaffected: 3.11.1 |
guessed |
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"type": "finder",
"value": "Gabrianna (Ria) Milloway of Idaho National Laboratory reported this vulnerability to CISA."
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],
"solutions": [
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"lang": "en",
"supportingMedia": [
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"base64": false,
"type": "text/html",
"value": "\u003cp\u003eRed Lion controls recommends the following upgrades for the N-Tron 700 Series: \u003cbr\u003e\u003c/p\u003e\u003cul\u003e\u003cli\u003eUpgrade to firmware version 3.11.1 or greater\u003c/li\u003e\u003cli\u003eConfigure or disable the SNMP communities\u003c/li\u003e\u003cli\u003eDisable access to the web GUI\u003c/li\u003e\u003c/ul\u003e\n\u003cp\u003eThe upgrade procedure document can be viewed \u003ca href=\"https://www.hms-networks.com/\"\u003ehere\u003c/a\u003e.\u003c/p\u003e\n\u003cp\u003eThe advisory issued by HMS Networks regarding these vulnerabilities can be viewed \u003ca href=\"https://www.hms-networks.com/cybersecurity\"\u003ehere\u003c/a\u003e.\u003c/p\u003e"
}
],
"value": "Red Lion controls recommends the following upgrades for the N-Tron 700 Series: \n\n\n * Upgrade to firmware version 3.11.1 or greater\n * Configure or disable the SNMP communities\n * Disable access to the web GUI\n\n\n\n\n\nThe upgrade procedure document can be viewed here https://www.hms-networks.com/ .\n\n\n\n\nThe advisory issued by HMS Networks regarding these vulnerabilities can be viewed here https://www.hms-networks.com/cybersecurity ."
}
],
"source": {
"advisory": "ICSA-26-281-01",
"discovery": "EXTERNAL"
},
"title": "Red Lion Controls N-Tron 700 Series Missing Authentication for Critical Function",
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"datePublished": "2026-10-09T14:38:37.795Z",
"dateReserved": "2026-04-08T19:28:49.496Z",
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"state": "PUBLISHED"
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"id": "CVE-2026-33367",
"lastModified": "2026-10-09T17:29:33.410",
"metrics": {
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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