CVE-2026-29797 (GCVE-0-2026-29797)

Vulnerability from cvelistv5 – Published: 2026-10-09 14:40 – Updated: 2026-10-09 14:40
VLAI
Title
Red Lion Controls N-Tron 700 Series Download of Code Without Integrity Check
Summary
No authentication is required when updating firmware or bootloader, making it easy for malicious files to be pushed to the device. Additionally, anyone with the same software can scan a network for N-Tron devices and push/pull firmware without authenticating by using SNMP/TFTP.
Severity
7.1 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
8.4 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:L/SI:H/SA:N
CWE
Assigner
icscert CNA under the icscert root
CNA scorecard C 75/100 over 352 records in the last 180 days details
References
Impacted products
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 Create a notification for this product.
Credits
Gabrianna (Ria) Milloway of Idaho National Laboratory reported this vulnerability to CISA.
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "700 Series",
          "vendor": "Red Lion Controls",
          "versions": [
            {
              "lessThan": "Firmware Versions 3.11.0",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            },
            {
              "lessThan": "Bootloader Versions 2.0.6.1",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "3.11.1"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Gabrianna (Ria) Milloway of Idaho National Laboratory reported this vulnerability to CISA."
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "No authentication is required when updating firmware or bootloader, making it easy for malicious files to be pushed to the device. Additionally, anyone with the same software can scan a network for N-Tron devices and push/pull firmware without authenticating by using SNMP/TFTP."
            }
          ],
          "value": "No authentication is required when updating firmware or bootloader, making it easy for malicious files to be pushed to the device. Additionally, anyone with the same software can scan a network for N-Tron devices and push/pull firmware without authenticating by using SNMP/TFTP."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
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        },
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8.4,
            "baseSeverity": "HIGH",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "LOW",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "LOW",
            "subIntegrityImpact": "HIGH",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:L/SI:H/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
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      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-494",
              "description": "CWE-494",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-09T14:40:20.991Z",
        "orgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6",
        "shortName": "icscert"
      },
      "references": [
        {
          "url": "https://www.hms-networks.com/"
        },
        {
          "url": "https://www.hms-networks.com/cybersecurity"
        },
        {
          "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-26-281-01"
        },
        {
          "url": "https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-281-01.json"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "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 Download of Code Without Integrity Check",
      "x_generator": {
        "engine": "Vulnogram 1.0.5"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6",
    "assignerShortName": "icscert",
    "cveId": "CVE-2026-29797",
    "datePublished": "2026-10-09T14:40:20.991Z",
    "dateReserved": "2026-04-08T19:28:49.509Z",
    "dateUpdated": "2026-10-09T14:40:20.991Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-29797",
      "date": "2026-10-10",
      "epss": "0.00157",
      "percentile": "0.04323"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "700 Series",
                "vendor": "Red Lion Controls",
                "versions": [
                  {
                    "lessThan": "Firmware Versions 3.11.0",
                    "status": "affected",
                    "version": "0",
                    "versionType": "custom"
                  },
                  {
                    "lessThan": "Bootloader Versions 2.0.6.1",
                    "status": "affected",
                    "version": "0",
                    "versionType": "custom"
                  },
                  {
                    "status": "unaffected",
                    "version": "3.11.1"
                  }
                ]
              }
            ],
            "source": "ics-cert@hq.dhs.gov"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "No authentication is required when updating firmware or bootloader, making it easy for malicious files to be pushed to the device. Additionally, anyone with the same software can scan a network for N-Tron devices and push/pull firmware without authenticating by using SNMP/TFTP."
          }
        ],
        "id": "CVE-2026-29797",
        "lastModified": "2026-10-09T17:29:33.410",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
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                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
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                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N",
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              },
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              "impactScore": 4.2,
              "source": "ics-cert@hq.dhs.gov",
              "type": "Secondary"
            }
          ],
          "cvssMetricV40": [
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                "Automatable": "NOT_DEFINED",
                "Recovery": "NOT_DEFINED",
                "Safety": "NOT_DEFINED",
                "attackComplexity": "LOW",
                "attackRequirements": "NONE",
                "attackVector": "NETWORK",
                "availabilityRequirement": "NOT_DEFINED",
                "baseScore": 8.4,
                "baseSeverity": "HIGH",
                "confidentialityRequirement": "NOT_DEFINED",
                "exploitMaturity": "NOT_DEFINED",
                "integrityRequirement": "NOT_DEFINED",
                "modifiedAttackComplexity": "NOT_DEFINED",
                "modifiedAttackRequirements": "NOT_DEFINED",
                "modifiedAttackVector": "NOT_DEFINED",
                "modifiedPrivilegesRequired": "NOT_DEFINED",
                "modifiedSubAvailabilityImpact": "NOT_DEFINED",
                "modifiedSubConfidentialityImpact": "NOT_DEFINED",
                "modifiedSubIntegrityImpact": "NOT_DEFINED",
                "modifiedUserInteraction": "NOT_DEFINED",
                "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
                "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
                "modifiedVulnIntegrityImpact": "NOT_DEFINED",
                "privilegesRequired": "LOW",
                "providerUrgency": "NOT_DEFINED",
                "subAvailabilityImpact": "NONE",
                "subConfidentialityImpact": "LOW",
                "subIntegrityImpact": "HIGH",
                "userInteraction": "NONE",
                "valueDensity": "NOT_DEFINED",
                "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:L/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
                "version": "4.0",
                "vulnAvailabilityImpact": "NONE",
                "vulnConfidentialityImpact": "LOW",
                "vulnIntegrityImpact": "HIGH",
                "vulnerabilityResponseEffort": "NOT_DEFINED"
              },
              "source": "ics-cert@hq.dhs.gov",
              "type": "Secondary"
            }
          ]
        },
        "published": "2026-10-09T15:17:13.843",
        "references": [
          {
            "source": "ics-cert@hq.dhs.gov",
            "url": "https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-281-01.json"
          },
          {
            "source": "ics-cert@hq.dhs.gov",
            "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-26-281-01"
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          {
            "source": "ics-cert@hq.dhs.gov",
            "url": "https://www.hms-networks.com/"
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            "url": "https://www.hms-networks.com/cybersecurity"
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        "vulnStatus": "Awaiting Analysis",
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            "source": "ics-cert@hq.dhs.gov",
            "type": "Primary"
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        ]
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    }
  }
}



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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

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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.
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  • 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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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.