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CVE-2021-25253

Estado: ModificadaAlta (7.8)—💥 PoC

An improper access control vulnerability in Trend Micro Apex One, Trend Micro Apex One as a Service and OfficeScan XG SP1 on a resource used by the service could allow a local attacker to escalate privileges on affected installations. Please note: an attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

💥 Exploits públicos

Hay código de explotación o plantillas de detección públicos. No es lo mismo que explotación activa confirmada (KEV), pero aumenta el riesgo: parchee con prioridad.

⚠️ Las pruebas de concepto de GitHub no están verificadas: algunas son falsas o contienen malware. No las ejecute nunca fuera de un laboratorio aislado.

Tecnologías afectadas (2)

Trendmicro — Apex ONETrendmicro — Officescan

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2021-25253",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.2,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "security@trendmicro.com",
      "affectedData": [
        {
          "vendor": "Trend Micro",
          "product": "Trend Micro Apex One",
          "versions": [
            {
              "status": "affected",
              "version": "2019, SaaS"
            }
          ]
        },
        {
          "vendor": "Trend Micro",
          "product": "Trend Micro OfficeScan",
          "versions": [
            {
              "status": "affected",
              "version": "XG SP1"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-04-13T13:15:13.443",
  "references": [
    {
      "url": "https://success.trendmicro.com/solution/000286019",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "security@trendmicro.com"
    },
    {
      "url": "https://success.trendmicro.com/solution/000286157",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "security@trendmicro.com"
    },
    {
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-21-401/",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "security@trendmicro.com"
    },
    {
      "url": "https://success.trendmicro.com/solution/000286019",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
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      "url": "https://success.trendmicro.com/solution/000286157",
      "tags": [
        "Vendor Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-21-401/",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-732"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An improper access control vulnerability in Trend Micro Apex One, Trend Micro Apex One as a Service and OfficeScan XG SP1 on a resource used by the service could allow a local attacker to escalate privileges on affected installations. Please note: an attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de control de acceso inapropiado en Trend Micro Apex One, Trend Micro Apex One as a Service y OfficeScan XG SP1, en un recurso usado por el servicio podría permitir a un atacante local escalar privilegios en las instalaciones afectadas. Nota: un atacante primero debe obtener la habilidad de ejecutar código poco privilegiado en el sistema de destino para explotar esta vulnerabilidad"
    }
  ],
  "lastModified": "2026-06-17T03:41:43.423",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:trendmicro:apex_one:2019:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "AF019D2D-C426-4D2D-A254-442CE777B41E"
            },
            {
              "criteria": "cpe:2.3:a:trendmicro:apex_one:2019:*:*:*:saas:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "8FA15535-6AC8-4062-BE7B-CD545B7516E2"
            },
            {
              "criteria": "cpe:2.3:a:trendmicro:officescan:xg:sp1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "64600B42-4884-41F2-A683-AE1EDB79372E"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@trendmicro.com"
}