CVE-2026-6180

{
  "id": "CVE-2026-6180",
  "sourceIdentifier": "eb41dac7-0af8-4f84-9f6d-0272772514f4",
  "published": "2026-05-05T07:16:00.793",
  "lastModified": "2026-10-26T19:10:00.163",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A race condition exists in PaperCut MF when processing badge-swipe data from certain HP multifunction devices. Under specific network conditions involving dropped packets and out-of-order sequence counters, the server may incorrectly process fragmented data chunks. If a sequence reset notification fails to reach the server, the server may reject the initial data chunk while erroneously accepting subsequent chunks before a connection reset completes.\n\n\n\nThis leads to the registration of a truncated badge ID string. While this typically results in an authentication failure, the vulnerability is compounded in environments utilizing custom badge-ID post-processing scripts. In such configurations, the truncated string may be transformed into a valid ID belonging to a different user, leading to unauthorized session establishment (Incorrect User Login) on the device."
    },
    {
      "lang": "es",
      "value": "Una condición de carrera existe en PaperCut MF al procesar datos de deslizamiento de credencial de ciertos dispositivos multifunción HP. Bajo condiciones de red específicas que involucran paquetes descartados y contadores de secuencia fuera de orden, el servidor puede procesar incorrectamente fragmentos de datos. Si una notificación de restablecimiento de secuencia no llega al servidor, el servidor puede rechazar el fragmento de datos inicial mientras acepta erróneamente fragmentos posteriores antes de que se complete un restablecimiento de conexión.\n\nEsto lleva al registro de una cadena de ID de credencial truncada. Si bien esto típicamente resulta en un fallo de autenticación, la vulnerabilidad se agrava en entornos que utilizan scripts personalizados de post-procesamiento de ID de credencial. En tales configuraciones, la cadena truncada puede transformarse en un ID válido perteneciente a un usuario diferente, lo que lleva al establecimiento de sesión no autorizado (Inicio de sesión de usuario incorrecto) en el dispositivo."
    }
  ],
  "affected": [
    {
      "source": "eb41dac7-0af8-4f84-9f6d-0272772514f4",
      "affectedData": [
        {
          "vendor": "PaperCut",
          "product": "PaperCut NG/MF",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "0",
              "lessThan": "24.1.9",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "25.0.10",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV40": [
      {
        "source": "eb41dac7-0af8-4f84-9f6d-0272772514f4",
        "type": "Secondary",
        "cvssData": {
          "version": "4.0",
          "vectorString": "CVSS:4.0/AV:P/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:L/SI:L/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": 4.1,
          "baseSeverity": "MEDIUM",
          "attackVector": "PHYSICAL",
          "attackComplexity": "LOW",
          "attackRequirements": "PRESENT",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "NONE",
          "vulnAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "LOW",
          "subIntegrityImpact": "LOW",
          "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": "[email protected]",
        "type": "Primary",
        "cvssData": {
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          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "HIGH",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 5.9
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-05-05T13:47:26.998229Z",
          "id": "CVE-2026-6180",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "eb41dac7-0af8-4f84-9f6d-0272772514f4",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        },
        {
          "lang": "en",
          "value": "CWE-367"
        }
      ]
    },
    {
      "source": "[email protected]",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-367"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:papercut:papercut_mf:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "24.1.9",
              "matchCriteriaId": "F2AF3AB4-FD10-4DE1-B906-011F45948BD0"
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            {
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              "criteria": "cpe:2.3:a:papercut:papercut_mf:*:*:*:*:*:*:*:*",
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              "versionEndExcluding": "24.1.9",
              "matchCriteriaId": "44FCDCDE-4126-4F4F-89FC-D44924F45C82"
            },
            {
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              "versionStartIncluding": "25.0.2",
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              "matchCriteriaId": "65745C75-AF55-4C86-8D1A-35BB6446F77D"
            }
          ]
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      ]
    }
  ],
  "references": [
    {
      "url": "https://www.papercut.com/kb/Main/papercut-ng-mf-and-papercut-hive-security-bulletin-may-2026/",
      "source": "eb41dac7-0af8-4f84-9f6d-0272772514f4",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}