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CVE-2026-77847 (GCVE-0-2026-77847)

Vulnerability from cvelistv5 – Published: 2026-09-04 20:55 – Updated: 2026-09-04 20:55
VLAI
Title
Tycon Systems TPDIN-Monitor-WEB3 Use of Hard-coded Credentials
Summary
Tycon Systems TPDIN-Monitor-WEB3 versions 2.2.9 and prior are vulnerable to a use of hard-coded credential vulnerability. This could allow an attacker to intercept sensitive information or credentials.
Severity
6.5 (Medium)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.1 (High)
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
Tycon Systems TPDIN-Monitor-WEB3 Affected: 0 , ≤ 2.2.9 (custom)
Unaffected: v2.4.2
guessed Create a notification for this product.
Credits
Abdiwelli Guled reported this vulnerability to CISA.
Show details on NVD website
To clipboard 

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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "TPDIN-Monitor-WEB3",
          "vendor": "Tycon Systems",
          "versions": [
            {
              "lessThanOrEqual": "2.2.9",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "v2.4.2"
            }
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        }
      ],
      "credits": [
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          "lang": "en",
          "type": "finder",
          "value": "Abdiwelli Guled reported this vulnerability to CISA."
        }
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              "value": "Tycon Systems TPDIN-Monitor-WEB3 versions 2.2.9 and prior are vulnerable to a use of hard-coded credential vulnerability. This could allow an attacker to intercept sensitive information or credentials."
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          "value": "Tycon Systems TPDIN-Monitor-WEB3 versions 2.2.9 and prior are vulnerable to a use of hard-coded credential vulnerability. This could allow an attacker to intercept sensitive information or credentials."
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      "metrics": [
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          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
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            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "ADJACENT",
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0",
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            "vulnIntegrityImpact": "NONE",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
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          "descriptions": [
            {
              "cweId": "CWE-798",
              "description": "CWE-798",
              "lang": "en",
              "type": "CWE"
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      "providerMetadata": {
        "dateUpdated": "2026-09-04T20:55:41.831Z",
        "orgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6",
        "shortName": "icscert"
      },
      "references": [
        {
          "url": "https://firm.tyconsystems.com/tpdin-monitor-web3-v2/TPDIN-MONITOR-WEB3-V2_v2.4.2.tfw"
        },
        {
          "url": "https://firm.tyconsystems.com/tpdin-monitor-web3-v2/TPDIN-MONITOR-WEB3-V2_v2.4.2T.hex"
        },
        {
          "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-26-246-08"
        },
        {
          "url": "https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-246-08.json"
        }
      ],
      "solutions": [
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          "supportingMedia": [
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              "value": "\u003cp\u003eTycon Systems has released TPDIN-Monitor-WEB3 Firmware v2.4.2.\u003c/p\u003e\n\u003cp\u003eUnits already running v2.4.2, for subsequent updates (signed container):\u0026nbsp;\u003cbr\u003e\u003ca href=\"https://firm.tyconsystems.com/tpdin-monitor-web3-v2/TPDIN-MONITOR-WEB3-V2_v2.4.2.tfw\"\u003ehttps://firm.tyconsystems.com/tpdin-monitor-web3-v2/TPDIN-MONITOR-WEB3-V2_v2.4.2.tfw\u003c/a\u003e\u003c/p\u003e\n\u003cp\u003eAll units currently in the field, including the v2.2.9 covered by this report (legacy Intel HEX):\u0026nbsp;\u003cbr\u003e\u003ca href=\"https://firm.tyconsystems.com/tpdin-monitor-web3-v2/TPDIN-MONITOR-WEB3-V2_v2.4.2T.hex\"\u003ehttps://firm.tyconsystems.com/tpdin-monitor-web3-v2/TPDIN-MONITOR-WEB3-V2_v2.4.2T.hex\u003c/a\u003e\u003c/p\u003e\n\u003cp\u003eA unit running v2.2.9 installs the .hex build directly and arrives at v2.4.2 in a single step; no intermediate version is required. The signed .tfw container cannot be read by a v2.2.9 updater, which accepts only Intel HEX, so the .hex artifact is the one every deployed unit needs.\u003c/p\u003e\n\u003cp\u003eFor more information, contact Tycon Systems:\u0026nbsp;\u003cbr\u003e\u003ca href=\"https://www.tyconsystems.com/contact\"\u003ehttps://www.tyconsystems.com/contact\u003c/a\u003e\u003c/p\u003e"
            }
          ],
          "value": "Tycon Systems has released TPDIN-Monitor-WEB3 Firmware v2.4.2.\n\n\n\n\nUnits already running v2.4.2, for subsequent updates (signed container):\u00a0\n https://firm.tyconsystems.com/tpdin-monitor-web3-v2/TPDIN-MONITOR-WEB3-V2_v2.4.2.tfw \n\n\n\n\nAll units currently in the field, including the v2.2.9 covered by this report (legacy Intel HEX):\u00a0\n https://firm.tyconsystems.com/tpdin-monitor-web3-v2/TPDIN-MONITOR-WEB3-V2_v2.4.2T.hex \n\n\n\n\nA unit running v2.2.9 installs the .hex build directly and arrives at v2.4.2 in a single step; no intermediate version is required. The signed .tfw container cannot be read by a v2.2.9 updater, which accepts only Intel HEX, so the .hex artifact is the one every deployed unit needs.\n\n\n\n\nFor more information, contact Tycon Systems:\u00a0\n https://www.tyconsystems.com/contact"
        }
      ],
      "source": {
        "advisory": "ICSA-26-246-08",
        "discovery": "EXTERNAL"
      },
      "title": "Tycon Systems TPDIN-Monitor-WEB3 Use of Hard-coded Credentials",
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  "cveMetadata": {
    "assignerOrgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6",
    "assignerShortName": "icscert",
    "cveId": "CVE-2026-77847",
    "datePublished": "2026-09-04T20:55:41.831Z",
    "dateReserved": "2026-09-01T17:01:04.754Z",
    "dateUpdated": "2026-09-04T20:55:41.831Z",
    "state": "PUBLISHED"
  },
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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.

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  • 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.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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