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FKIE_CVE-2025-41755

Vulnerability from fkie_nvd - Published: 2026-03-09 09:15 - Updated: 2026-06-17 09:23
Severity
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Summary
A low-privileged remote attacker can exploit the ubr-logread method in wwwubr.cgi to read arbitrary files on the system. The endpoint accepts a parameter specifying the log file to open (e.g., /tmp/weblog{some_number}), but this parameter is not properly validated, allowing an attacker to modify it to reference any file and retrieve its contents.
References
info@cert.vde.comhttps://www.mbs-solutions.de/mbs-2025-0001Vendor Advisory
Impacted products
Vendor Product Version
mbs-solutions universal_bacnet_router_firmware *
mbs-solutions ubr-01_mk_ii -
mbs-solutions ubr-02 -
mbs-solutions ubr-lon -
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "UBR-01 Mk II",
          "vendor": "MBS",
          "versions": [
            {
              "lessThan": "6.0.1.0",
              "status": "affected",
              "version": "0.0.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "UBR-02",
          "vendor": "MBS",
          "versions": [
            {
              "lessThan": "6.0.1.0",
              "status": "affected",
              "version": "0.0.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "UBR-LON",
          "vendor": "MBS",
          "versions": [
            {
              "lessThan": "6.0.1.0",
              "status": "affected",
              "version": "0.0.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "info@cert.vde.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:mbs-solutions:universal_bacnet_router_firmware:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "D4E2B246-5465-41DB-BD9A-1533A7508790",
              "versionEndExcluding": "6.0.1.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:mbs-solutions:ubr-01_mk_ii:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "0D812069-6738-4B82-992B-09BB239783AB",
              "vulnerable": false
            },
            {
              "criteria": "cpe:2.3:h:mbs-solutions:ubr-02:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "B21413DE-E1FA-4B5C-A415-F8E70D7090BF",
              "vulnerable": false
            },
            {
              "criteria": "cpe:2.3:h:mbs-solutions:ubr-lon:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "E0C67EAC-C633-4037-B2C4-965455FFF2A0",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A low-privileged remote attacker can exploit the ubr-logread method in wwwubr.cgi to read arbitrary files on the system. The endpoint accepts a parameter specifying the log file to open (e.g., /tmp/weblog{some_number}), but this parameter is not properly validated, allowing an attacker to modify it to reference any file and retrieve its contents."
    },
    {
      "lang": "es",
      "value": "Un atacante remoto con pocos privilegios puede explotar el m\u00e9todo ubr-logread en wwwubr.cgi para leer archivos arbitrarios en el sistema. El endpoint acepta un par\u00e1metro que especifica el archivo de registro a abrir (por ejemplo, /tmp/weblog{alg\u00fan_n\u00famero}), pero este par\u00e1metro no se valida correctamente, lo que permite a un atacante modificarlo para hacer referencia a cualquier archivo y recuperar su contenido."
    }
  ],
  "id": "CVE-2025-41755",
  "lastModified": "2026-06-17T09:23:06.880",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "info@cert.vde.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-41755",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-03-09T20:01:31.567720Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-03-09T09:15:59.183",
  "references": [
    {
      "source": "info@cert.vde.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.mbs-solutions.de/mbs-2025-0001"
    }
  ],
  "sourceIdentifier": "info@cert.vde.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ],
      "source": "info@cert.vde.com",
      "type": "Secondary"
    }
  ]
}



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