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CVE-2026-20191

Full vulnerability record from the local CVENow database.

Description

A vulnerability in Cisco Catalyst Center could allow an unauthenticated, remote attacker to read arbitrary files from a restricted container.  This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to read arbitrary files from a restricted container of the affected device.

Severity
HIGH
CVSS score
7.5 (v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2026-07-01 17:16:29.330000
Last modified
2026-10-25 17:10:00.197000
View original CVE JSON
{
  "id": "CVE-2026-20191",
  "sourceIdentifier": "[email protected]",
  "published": "2026-07-01T17:16:29.330",
  "lastModified": "2026-10-25T17:10:00.197",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in Cisco Catalyst Center could allow an unauthenticated, remote attacker to read arbitrary files from a restricted container. \r\n\r\nThis vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to read arbitrary files from a restricted container of the affected device."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en Cisco Catalyst Center podría permitir a un atacante remoto no autenticado leer archivos arbitrarios de un contenedor restringido.\n\nEsta vulnerabilidad se debe a una validación insuficiente de la entrada proporcionada por el usuario. Un atacante podría explotar esta vulnerabilidad enviando una solicitud HTTP manipulada a un dispositivo afectado. Un exploit exitoso podría permitir al atacante leer archivos arbitrarios de un contenedor restringido del dispositivo afectado."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Cisco",
          "product": "Cisco Catalyst Center",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "2.3.7.0-VA",
              "status": "affected"
            },
            {
              "version": "2.3.7.5-VA",
              "status": "affected"
            },
            {
              "version": "2.3.7.6-VA",
              "status": "affected"
            },
            {
              "version": "2.3.7.7-VA",
              "status": "affected"
            },
            {
              "version": "2.3.7.9-VA",
              "status": "affected"
            },
            {
              "version": "3.1.3",
              "status": "affected"
            },
            {
              "version": "3.1.3-VA",
              "status": "affected"
            },
            {
              "version": "2.3.7.10-VA",
              "status": "affected"
            },
            {
              "version": "3.1.5",
              "status": "affected"
            },
            {
              "version": "3.1.5-VA",
              "status": "affected"
            },
            {
              "version": "3.1.5-VA on AWS",
              "status": "affected"
            },
            {
              "version": "3.1.5-RevUp",
              "status": "affected"
            },
            {
              "version": "3.1.6",
              "status": "affected"
            },
            {
              "version": "3.1.6-VA",
              "status": "affected"
            },
            {
              "version": "3.1.6-BETA",
              "status": "affected"
            },
            {
              "version": "3.1.6-GSMU100",
              "status": "affected"
            },
            {
              "version": "3.1.6-VA-GSMU100",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-07-01T17:18:27.744122Z",
          "id": "CVE-2026-20191",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:cisco:catalyst_center:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "2.3.7.0",
              "versionEndIncluding": "2.3.7.11",
              "matchCriteriaId": "4AF7BD4B-F1E3-4C22-9466-10778ED5603C"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:cisco:catalyst_center:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "3.1.3",
              "versionEndExcluding": "3.1.6-75524.200",
              "matchCriteriaId": "5C708AD2-6D78-4708-A684-EEA9B1980951"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:cisco:catalyst_center_global_manager:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "1.4.1",
              "matchCriteriaId": "47F314DC-372A-40F8-9A1D-053DECFF9FAD"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-catc-file-read-wLH2vf8X",
      "source": "[email protected]",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}