FKIE_CVE-2026-5434

Vulnerability from fkie_nvd - Published: 2026-05-21 09:16 - Updated: 2026-07-30 19:18
Severity
5.9 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Summary
Honeywell Control Network Module (CNM) contains insertion of sensitive information into an unintended directory. An attacker could exploit this vulnerability through probing system files, potentially resulting in unintended access to protected data. Honeywell recommends updating to the most recent version of this product, service or offering [200.1]. The CNM versions affected are from [100.1, 101.1, 110.1, and 110.2].
References
psirt@honeywell.comhttps://www.honeywell.com/us/en/product-security
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Control Network Module (CNM)",
          "vendor": "Honeywell International Inc.",
          "versions": [
            {
              "lessThanOrEqual": "110.2",
              "status": "affected",
              "version": "100.1",
              "versionType": "cpe"
            }
          ]
        }
      ],
      "source": "psirt@honeywell.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Honeywell Control\nNetwork Module (CNM)\u00a0contains\ninsertion of sensitive information into an unintended directory. An attacker could exploit this vulnerability through probing\nsystem files, potentially resulting in unintended\naccess to protected data.\n\n\n\nHoneywell\nrecommends updating to the most recent version of this product, service or\noffering [200.1]. The CNM versions affected are from [100.1, 101.1, 110.1, and 110.2]."
    }
  ],
  "id": "CVE-2026-5434",
  "lastModified": "2026-07-30T19:18:33.887",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.9,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 3.6,
        "source": "psirt@honeywell.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-5434",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-05-21T12:06:31.149864Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-05-21T09:16:30.410",
  "references": [
    {
      "source": "psirt@honeywell.com",
      "url": "https://www.honeywell.com/us/en/product-security"
    }
  ],
  "sourceIdentifier": "psirt@honeywell.com",
  "vulnStatus": "Undergoing Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-538"
        }
      ],
      "source": "psirt@honeywell.com",
      "type": "Secondary"
    }
  ]
}



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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.
  • 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.


Detection rules are retrieved from Rulezet.