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CVE-2020-8463

Status: ModifiedHigh (7.5)—

A vulnerability in Trend Micro InterScan Web Security Virtual Appliance 6.5 SP2 could allow an attacker to bypass a global authorization check for anonymous users by manipulating request paths.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Trendmicro — Interscan WEB Security Virtual Appliance

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2020-8463",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "security@trendmicro.com",
      "affectedData": [
        {
          "vendor": "Trend Micro",
          "product": "Trend Micro InterScan Web Security Virtual Appliance",
          "versions": [
            {
              "status": "affected",
              "version": "6.5 SP2"
            }
          ]
        }
      ]
    }
  ],
  "published": "2020-12-17T21:15:12.960",
  "references": [
    {
      "url": "https://sec-consult.com/vulnerability-lab/advisory/multiple-critical-vulnerabilities-in-trend-micro-interscan-web-security-virtual-appliance/",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "security@trendmicro.com"
    },
    {
      "url": "https://success.trendmicro.com/solution/000283077",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "security@trendmicro.com"
    },
    {
      "url": "https://sec-consult.com/vulnerability-lab/advisory/multiple-critical-vulnerabilities-in-trend-micro-interscan-web-security-virtual-appliance/",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://success.trendmicro.com/solution/000283077",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in Trend Micro InterScan Web Security Virtual Appliance 6.5 SP2 could allow an attacker to bypass a global authorization check for anonymous users by manipulating request paths."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en Trend Micro InterScan Web Security Virtual Appliance versión 6.5 SP2, podría permitir a un atacante omitir una comprobación de autorización global para usuarios anónimos mediante la manipulación de rutas de petición"
    }
  ],
  "lastModified": "2026-06-17T03:26:24.850",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:trendmicro:interscan_web_security_virtual_appliance:6.5:sp2:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "778D5B34-395F-48EF-9E7D-B8FD11FEBE7E"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@trendmicro.com"
}