Vulnerability-Lookup

FKIE_CVE-2021-44021

Vulnerability from fkie_nvd - Published: 2021-12-03 11:15 - Updated: 2026-06-17 04:11

Severity

7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

An unnecessary privilege vulnerability in Trend Micro Worry-Free Business Security 10.0 SP1 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. This vulnerability is similar to but not identical to CVE-2021-44019 and 44020.

References

URL	Tags
security@trendmicro.com	https://success.trendmicro.com/solution/000289230	Vendor Advisory
security@trendmicro.com	https://www.zerodayinitiative.com/advisories/ZDI-21-1366/	Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108	https://success.trendmicro.com/solution/000289230	Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://www.zerodayinitiative.com/advisories/ZDI-21-1366/	Third Party Advisory, VDB Entry

Impacted products

	Vendor	Product	Version
	trendmicro	worry-free_business_security	10.0

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Trend Micro Worry-Free Business Security",
          "vendor": "Trend Micro",
          "versions": [
            {
              "status": "affected",
              "version": "10.0 SP1"
            }
          ]
        }
      ],
      "source": "security@trendmicro.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "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"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An unnecessary privilege vulnerability in Trend Micro Worry-Free Business Security 10.0 SP1 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. This vulnerability is similar to but not identical to CVE-2021-44019 and 44020."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de privilegios no necesarios en Trend Micro Worry-Free Business Security versi\u00f3n 10.0 SP1, podr\u00eda permitir a un atacante local escalar privilegios en las instalaciones afectadas. Nota: un atacante debe obtener primero la capacidad de ejecutar c\u00f3digo poco privilegiado en el sistema de destino para poder explotar esta vulnerabilidad. Esta vulnerabilidad es similar, pero no id\u00e9ntica, a CVE-2021-44019 y 44020"
    }
  ],
  "id": "CVE-2021-44021",
  "lastModified": "2026-06-17T04:11:48.237",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 7.2,
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "COMPLETE",
          "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 10.0,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-12-03T11:15:07.773",
  "references": [
    {
      "source": "security@trendmicro.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://success.trendmicro.com/solution/000289230"
    },
    {
      "source": "security@trendmicro.com",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-21-1366/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://success.trendmicro.com/solution/000289230"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-21-1366/"
    }
  ],
  "sourceIdentifier": "security@trendmicro.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-269"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2021-44021 (GCVE-0-2021-44021)

Vulnerability from cvelistv5 – Published: 2021-12-03 10:50 – Updated: 2024-08-04 04:10

Summary

Severity

No CVSS data available.

CWE

Improper Privilege Management

Assigner

trendmicro CNA under the mitre root

CNA scorecard D 57/100 over 16 records in the last 180 days details

References

2 references

URL	Tags
https://success.trendmicro.com/solution/000289230	x_refsource_MISC
https://www.zerodayinitiative.com/advisories/ZDI-…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
Trend Micro	Trend Micro Worry-Free Business Security	Affected: 10.0 SP1

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T04:10:17.287Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://success.trendmicro.com/solution/000289230"
          },
          {
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              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.zerodayinitiative.com/advisories/ZDI-21-1366/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Trend Micro Worry-Free Business Security",
          "vendor": "Trend Micro",
          "versions": [
            {
              "status": "affected",
              "version": "10.0 SP1"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
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        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Improper Privilege Management",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-12-03T10:50:11.000Z",
        "orgId": "7f7bd7df-cffe-4fdb-ab6d-859363b89272",
        "shortName": "trendmicro"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://success.trendmicro.com/solution/000289230"
        },
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          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.zerodayinitiative.com/advisories/ZDI-21-1366/"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security@trendmicro.com",
          "ID": "CVE-2021-44021",
          "STATE": "PUBLIC"
        },
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          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Trend Micro Worry-Free Business Security",
                      "version": {
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                          {
                            "version_value": "10.0 SP1"
                          }
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                  ]
                },
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            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
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                  "lang": "eng",
                  "value": "Improper Privilege Management"
                }
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              "refsource": "MISC",
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            },
            {
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            }
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  "cveMetadata": {
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    "assignerShortName": "trendmicro",
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    "datePublished": "2021-12-03T10:50:11.000Z",
    "dateReserved": "2021-11-18T00:00:00.000Z",
    "dateUpdated": "2024-08-04T04:10:17.287Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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.

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