GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

FKIE_CVE-2021-36741

Vulnerability from fkie_nvd - Published: 2021-07-29 20:15 - Updated: 2026-06-17 03:59
Severity
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
An improper input validation vulnerability in Trend Micro Apex One, Apex One as a Service, OfficeScan XG, and Worry-Free Business Security 10.0 SP1 allows a remote attached to upload arbitrary files on affected installations. Please note: an attacker must first obtain the ability to logon to the product�s management console in order to exploit this vulnerability.
References
security@trendmicro.comhttps://success.trendmicro.com/jp/solution/000287796Broken Link, Vendor Advisory
security@trendmicro.comhttps://success.trendmicro.com/jp/solution/000287815Broken Link, Vendor Advisory
security@trendmicro.comhttps://success.trendmicro.com/solution/000287819Broken Link, Vendor Advisory
security@trendmicro.comhttps://success.trendmicro.com/solution/000287820Broken Link, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://success.trendmicro.com/jp/solution/000287796Broken Link, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://success.trendmicro.com/jp/solution/000287815Broken Link, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://success.trendmicro.com/solution/000287819Broken Link, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://success.trendmicro.com/solution/000287820Broken Link, Vendor Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-36741US Government Resource
Impacted products
Vendor Product Version
trendmicro officescan xg
trendmicro officescan_business_security 10.0
microsoft windows -
trendmicro apex_one 2019
trendmicro worry-free_business_security 10.0
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Trend Micro Apex One",
          "vendor": "Trend Micro",
          "versions": [
            {
              "status": "affected",
              "version": "2019, SaaS"
            }
          ]
        },
        {
          "product": "Trend Micro OfficeScan",
          "vendor": "Trend Micro",
          "versions": [
            {
              "status": "affected",
              "version": "XG SP1"
            }
          ]
        },
        {
          "product": "Trend Micro Worry-Free Business Security",
          "vendor": "Trend Micro",
          "versions": [
            {
              "status": "affected",
              "version": "10.0 SP1"
            }
          ]
        }
      ],
      "source": "security@trendmicro.com"
    }
  ],
  "cisaActionDue": "2021-11-17",
  "cisaExploitAdd": "2021-11-03",
  "cisaRequiredAction": "Apply updates per vendor instructions.",
  "cisaVulnerabilityName": "Trend Micro Multiple Products Improper Input Validation Vulnerability",
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:trendmicro:officescan:xg:sp1:*:*:*:*:*:*",
              "matchCriteriaId": "64600B42-4884-41F2-A683-AE1EDB79372E",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:trendmicro:officescan_business_security:10.0:sp1:*:*:*:*:*:*",
              "matchCriteriaId": "762313F8-2BA6-4ED7-A977-56C962D5B27F",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "A2572D17-1DE6-457B-99CC-64AFD54487EA",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:trendmicro:apex_one:2019:*:*:*:*:*:*:*",
              "matchCriteriaId": "AF019D2D-C426-4D2D-A254-442CE777B41E",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:trendmicro:worry-free_business_security:10.0:sp1:*:*:*:*:*:*",
              "matchCriteriaId": "FFCE8717-85D2-4F4F-91DF-C6DA341C4E19",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An improper input validation vulnerability in Trend Micro Apex One, Apex One as a Service, OfficeScan XG, and Worry-Free Business Security 10.0 SP1 allows a remote attached to upload arbitrary files on affected installations. Please note: an attacker must first obtain the ability to logon to the product\ufffds management console in order to exploit this vulnerability."
    },
    {
      "lang": "es",
      "value": " Una vulnerabilidad de validaci\u00f3n de entrada incorrecta en Trend Micro Apex One, Apex One as a Service, OfficeScan XG y Worry-Free Business Security 10.0 SP1 permite que un control remoto conectado cargue archivos arbitrarios en las instalaciones afectadas. Tenga en cuenta: un atacante primero debe obtener la capacidad de iniciar sesi\u00f3n en la consola de administraci\u00f3n del producto para poder aprovechar esta vulnerabilidad."
    }
  ],
  "id": "CVE-2021-36741",
  "lastModified": "2026-06-17T03:59:05.507",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 6.5,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 8.0,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2021-36741",
          "options": [
            {
              "exploitation": "active"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-02-06T19:40:34.627421Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2021-07-29T20:15:07.620",
  "references": [
    {
      "source": "security@trendmicro.com",
      "tags": [
        "Broken Link",
        "Vendor Advisory"
      ],
      "url": "https://success.trendmicro.com/jp/solution/000287796"
    },
    {
      "source": "security@trendmicro.com",
      "tags": [
        "Broken Link",
        "Vendor Advisory"
      ],
      "url": "https://success.trendmicro.com/jp/solution/000287815"
    },
    {
      "source": "security@trendmicro.com",
      "tags": [
        "Broken Link",
        "Vendor Advisory"
      ],
      "url": "https://success.trendmicro.com/solution/000287819"
    },
    {
      "source": "security@trendmicro.com",
      "tags": [
        "Broken Link",
        "Vendor Advisory"
      ],
      "url": "https://success.trendmicro.com/solution/000287820"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Broken Link",
        "Vendor Advisory"
      ],
      "url": "https://success.trendmicro.com/jp/solution/000287796"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Broken Link",
        "Vendor Advisory"
      ],
      "url": "https://success.trendmicro.com/jp/solution/000287815"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Broken Link",
        "Vendor Advisory"
      ],
      "url": "https://success.trendmicro.com/solution/000287819"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Broken Link",
        "Vendor Advisory"
      ],
      "url": "https://success.trendmicro.com/solution/000287820"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "tags": [
        "US Government Resource"
      ],
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-36741"
    }
  ],
  "sourceIdentifier": "security@trendmicro.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-434"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-434"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.