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CVE-2026-3611

🗓️ 12 Mar 2026 20:06:05Reported by icscertType 
cve
 cve
🔗 web.nvd.nist.gov👁 12 Views🌐 WEB

Honeywell IQ4x controller exposes web HMI without authentication in factory default, enabling attacker account

Related
Detection
Affected
Refs
Paths
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-3611
12 Mar 202620:06
attackerkb
Circl
CVE-2026-3611
10 Mar 202611:00
circl
CNNVD
Honeywell IQ4x 访问控制错误漏洞
12 Mar 202600:00
cnnvd
Cvelist
CVE-2026-3611 Honeywell IQ4x BMS Controller Missing authentication for critical function
12 Mar 202620:06
cvelist
EUVD
EUVD-2026-11706
12 Mar 202621:34
euvd
ICS
Honeywell IQ4 Series BMS Controller (Update A)
10 Mar 202606:00
ics
NVD
CVE-2026-3611
12 Mar 202621:16
nvd
Positive Technologies
PT-2026-24600
11 Mar 202600:00
ptsecurity
RedhatCVE
CVE-2026-3611
26 Mar 202615:04
redhatcve
Vulnrichment
CVE-2026-3611 Honeywell IQ4x BMS Controller Missing authentication for critical function
12 Mar 202620:06
vulnrichment
Rows per page
Vulners
Node
OROROROR
honeywelliq41xRange4.36
OR
honeywelliq3Range4.36
OR
honeywelliqecoRange4.36
[
  {
    "vendor": "Honeywell",
    "product": "IQ4E",
    "versions": [
      {
        "status": "affected",
        "version": "v3.50_3.44",
        "lessThanOrEqual": "4.36 (build 4.3.7.9)",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "Honeywell",
    "product": "IQ412",
    "versions": [
      {
        "status": "affected",
        "version": "v3.50_3.44",
        "lessThanOrEqual": "4.36 (build 4.3.7.9)",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "Honeywell",
    "product": "IQ422",
    "versions": [
      {
        "status": "affected",
        "version": "v3.50_3.44",
        "lessThanOrEqual": "4.36 (build 4.3.7.9)",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "Honeywell",
    "product": "IQ4NC",
    "versions": [
      {
        "status": "affected",
        "version": "v3.50_3.44",
        "lessThanOrEqual": "4.36 (build 4.3.7.9)",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "Honeywell",
    "product": "IQ41x",
    "versions": [
      {
        "status": "affected",
        "version": "v3.50_3.44",
        "lessThanOrEqual": "4.36 (build 4.3.7.9)",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "Honeywell",
    "product": "IQ3",
    "versions": [
      {
        "status": "affected",
        "version": "v3.50_3.44",
        "lessThanOrEqual": "4.36 (build 4.3.7.9)",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "Honeywell",
    "product": "IQECO",
    "versions": [
      {
        "status": "affected",
        "version": "v3.50_3.44",
        "lessThanOrEqual": "4.36 (build 4.3.7.9)",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  }
]
ParameterPositionPathDescriptionCWE
Actionrequest body/confirmAction.htmEnables the User module and prepares to create a new administrative credential via unauthenticated web-HMI.CWE-306
ActionModuleEntireReferencerequest body/confirmAction.htmEnables the User module and prepares to create a new administrative credential via unauthenticated web-HMI.CWE-306
ActionFieldsrequest body/confirmAction.htmEnables the User module and prepares to create a new administrative credential via unauthenticated web-HMI.CWE-306
ActionTextualPromptrequest body/confirmAction.htmEnables the User module and prepares to create a new administrative credential via unauthenticated web-HMI.CWE-306
ActionCompletionURLrequest body/confirmAction.htmEnables the User module and prepares to create a new administrative credential via unauthenticated web-HMI.CWE-306
ActionRejectionURLrequest body/confirmAction.htmEnables the User module and prepares to create a new administrative credential via unauthenticated web-HMI.CWE-306
ovrideStartrequest body/confirmAction.htmEnables the User module and prepares to create a new administrative credential via unauthenticated web-HMI.CWE-306
ServerCommandrequest body/U.htmCreates a new user credential (admin) to gain access to the HMI by setting user/module values.CWE-306
ModuleFullNamerequest body/U.htmCreates a new user credential (admin) to gain access to the HMI by setting user/module values.CWE-306
ovrideStartrequest body/U.htmCreates a new user credential (admin) to gain access to the HMI by setting user/module values.CWE-306
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30 Mar 2026 15:26Current
5.8Medium risk
Vulners AI Score5.8
CVSS 410
CVSS 3.110
EPSS0.00242
SSVC
12