{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-61884", "assignerOrgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6", "state": "PUBLISHED", "assignerShortName": "icscert", "dateReserved": "2026-07-13T18:17:10.040Z", "datePublished": "2026-07-24T21:40:40.449Z", "dateUpdated": "2026-09-04T21:28:52.355Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6", "shortName": "icscert", "dateUpdated": "2026-09-04T21:28:52.355Z"}, "title": "Tycon Systems TPDIN-Monitor-WEB2 Missing Authentication for Critical Function", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-306", "description": "CWE-306", "type": "CWE"}]}], "affected": [{"vendor": "Tycon Systems", "product": "TPDIN-Monitor-WEB2", "versions": [{"status": "affected", "version": "0", "lessThan": "2.4.5", "versionType": "custom"}, {"status": "unaffected", "version": "2.4.5"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "The Tycon Systems TPDIN-Monitor-WEB2\nships without HTTP credentials configured, intended for an installer to set them on first use. On firmware 2.4.4 and earlier, a unit left in this unconfigured state serves the web management interface without requiring any login. An attacker with network access to such a unit can reach full device controls, including power relay management, device reboot, remote access service configuration, and network settings, which could allow disruption of connected infrastructure or physical damage to equipment.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<div><span>The </span>Tycon Systems TPDIN-Monitor-WEB2\nships without HTTP credentials configured, intended for an installer to set them on first use. On firmware 2.4.4 and earlier, a unit left in this unconfigured state serves the web management interface without requiring any login. An attacker with network access to such a unit can reach full device controls, including power relay management, device reboot, remote access service configuration, and network settings, which could allow disruption of connected infrastructure or physical damage to equipment.\n\n</div>"}]}], "references": [{"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-26-202-01"}, {"url": "https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-202-01.json"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseSeverity": "CRITICAL", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}}, {"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "CRITICAL", "baseScore": 9.3, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"}}], "solutions": [{"lang": "en", "value": "Tycon Systems has released firmware 2.4.5, which resolves this vulnerability by requiring an administrator username and password to be set before the web interface is served. Further inquiries can be directed to security@tyconsystems.com.\n\nTycon Systems recommends setting an administrative username and strong password on the Network Configuration page and confirming in a private browser window that a login is required, for units still running firmware 2.4.4 or earlier. Repeat this after any factory reset.\n\nTycon Systems recommends not exposing the web interface to the Internet, as it is HTTP only. The unit should be kept on a private network, behind a firewall or VPN.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>Tycon Systems has released firmware 2.4.5, which resolves this vulnerability by requiring an administrator username and password to be set before the web interface is served. Further inquiries can be directed to security@tyconsystems.com.<br><br>Tycon Systems recommends setting an administrative username and strong password on the Network Configuration page and confirming in a private browser window that a login is required, for units still running firmware 2.4.4 or earlier. Repeat this after any factory reset.<br><br>Tycon Systems recommends not exposing the web interface to the Internet, as it is HTTP only. 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