CVE-2026-61884 (GCVE-0-2026-61884)
Vulnerability from cvelistv5 – Published: 2026-07-24 21:40 – Updated: 2026-07-24 21:40
VLAI
EPSS
VEX
Title
Tycon Systems TPDIN-Monitor-WEB2 Authentication Bypass Using an Alternate Path or Channel
Summary
The web management interface of Tycon Systems TPDIN-Monitor-WEB2
does not perform server-side validation of credentials during the login process. By submitting empty values for both credential fields, an unauthenticated remote attacker can bypass the authentication check and establish a valid administrative session. This grants full access to device controls including power relay management, device reboot, remote access service configuration, and network settings, which could allow an attacker to disrupt connected infrastructure or cause physical damage to equipment.
Severity
9.8 (Critical)
CWE
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Tycon Systems | TPDIN-Monitor-WEB2 |
Affected:
2.3.9
|
Credits
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "TPDIN-Monitor-WEB2",
"vendor": "Tycon Systems",
"versions": [
{
"status": "affected",
"version": "2.3.9"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Abdiwelli Guled reported this vulnerability to CISA."
}
],
"descriptions": [
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"supportingMedia": [
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"value": "\u003cdiv\u003e\u003cspan\u003eThe web management interface of\u0026nbsp;\u003c/span\u003eTycon Systems TPDIN-Monitor-WEB2\n\n\u003cspan\u003e\u0026nbsp;does not perform server-side validation of credentials during the login process. By submitting empty values for both credential fields, an unauthenticated remote attacker can bypass the authentication check and establish a valid administrative session. This grants full access to device controls including power relay management, device reboot, remote access service configuration, and network settings, which could allow an attacker to disrupt connected infrastructure or cause physical damage to equipment.\u003c/span\u003e\n\n\u003c/div\u003e"
}
],
"value": "The web management interface of\u00a0Tycon Systems TPDIN-Monitor-WEB2\n\n\u00a0does not perform server-side validation of credentials during the login process. By submitting empty values for both credential fields, an unauthenticated remote attacker can bypass the authentication check and establish a valid administrative session. This grants full access to device controls including power relay management, device reboot, remote access service configuration, and network settings, which could allow an attacker to disrupt connected infrastructure or cause physical damage to equipment."
}
],
"metrics": [
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"cvssV3_1": {
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"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
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"lang": "en",
"value": "GENERAL"
}
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},
{
"cvssV4_0": {
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"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 9.3,
"baseSeverity": "CRITICAL",
"exploitMaturity": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"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",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
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"scenarios": [
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"value": "GENERAL"
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"problemTypes": [
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"descriptions": [
{
"cweId": "CWE-288",
"description": "CWE-288",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-07-24T21:40:40.449Z",
"orgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6",
"shortName": "icscert"
},
"references": [
{
"url": "https://www.tyconsystems.com/contact"
},
{
"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"
}
],
"source": {
"advisory": "ICSA-26-202-01",
"discovery": "EXTERNAL"
},
"title": "Tycon Systems TPDIN-Monitor-WEB2 Authentication Bypass Using an Alternate Path or Channel",
"workarounds": [
{
"lang": "en",
"supportingMedia": [
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"base64": false,
"type": "text/html",
"value": "\u003cspan\u003eTycon Systems did not respond to CISA\u0027s attempts at coordination. Users of Tycon Systems TPDIN-Monitor-WEB2 are encouraged to contact Tycon Systems and keep their systems up to date.\u003c/span\u003e\u003cbr\u003e\u003ca href=\"https://www.tyconsystems.com/contact\"\u003ehttps://www.tyconsystems.com/contact\u003c/a\u003e"
}
],
"value": "Tycon Systems did not respond to CISA\u0027s attempts at coordination. Users of Tycon Systems TPDIN-Monitor-WEB2 are encouraged to contact Tycon Systems and keep their systems up to date.\n https://www.tyconsystems.com/contact"
}
],
"x_generator": {
"engine": "Vulnogram 1.0.4"
}
}
},
"cveMetadata": {
"assignerOrgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6",
"assignerShortName": "icscert",
"cveId": "CVE-2026-61884",
"datePublished": "2026-07-24T21:40:40.449Z",
"dateReserved": "2026-07-13T18:17:10.040Z",
"dateUpdated": "2026-07-24T21:40:40.449Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-61884",
"date": "2026-07-25",
"epss": "0.00664",
"percentile": "0.47988"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2026-61884\",\"sourceIdentifier\":\"ics-cert@hq.dhs.gov\",\"published\":\"2026-07-24T22:16:50.963\",\"lastModified\":\"2026-07-24T22:16:50.963\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The web management interface of\u00a0Tycon Systems TPDIN-Monitor-WEB2\\n\\n\u00a0does not perform server-side validation of credentials during the login process. By submitting empty values for both credential fields, an unauthenticated remote attacker can bypass the authentication check and establish a valid administrative session. This grants full access to device controls including power relay management, device reboot, remote access service configuration, and network settings, which could allow an attacker to disrupt connected infrastructure or cause physical damage to equipment.\"}],\"affected\":[{\"source\":\"ics-cert@hq.dhs.gov\",\"affectedData\":[{\"vendor\":\"Tycon Systems\",\"product\":\"TPDIN-Monitor-WEB2\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"2.3.9\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"ics-cert@hq.dhs.gov\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"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/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\",\"baseScore\":9.3,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"NONE\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"vulnConfidentialityImpact\":\"HIGH\",\"vulnIntegrityImpact\":\"HIGH\",\"vulnAvailabilityImpact\":\"HIGH\",\"subConfidentialityImpact\":\"NONE\",\"subIntegrityImpact\":\"NONE\",\"subAvailabilityImpact\":\"NONE\",\"exploitMaturity\":\"NOT_DEFINED\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\"}}],\"cvssMetricV31\":[{\"source\":\"ics-cert@hq.dhs.gov\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"ics-cert@hq.dhs.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-288\"}]}],\"references\":[{\"url\":\"https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-202-01.json\",\"source\":\"ics-cert@hq.dhs.gov\"},{\"url\":\"https://www.cisa.gov/news-events/ics-advisories/icsa-26-202-01\",\"source\":\"ics-cert@hq.dhs.gov\"},{\"url\":\"https://www.tyconsystems.com/contact\",\"source\":\"ics-cert@hq.dhs.gov\"}]}}"
}
}
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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.
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