Vulnerability-Lookup

FKIE_CVE-2021-32457

Vulnerability from fkie_nvd - Published: 2021-05-26 14:15 - Updated: 2026-06-17 03:52

Severity

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

Summary

Trend Micro Home Network Security version 6.6.604 and earlier is vulnerable to an iotcl stack-based buffer overflow vulnerability which could allow an attacker to issue a specially crafted iotcl to escalate privileges on affected devices. An attacker must first obtain the ability to execute low-privileged code on the target device in order to exploit this vulnerability.

References

URL	Tags
security@trendmicro.com	https://helpcenter.trendmicro.com/en-us/article/TMKA-10337	Vendor Advisory
security@trendmicro.com	https://talosintelligence.com/vulnerability_reports/TALOS-2021-1230	Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://helpcenter.trendmicro.com/en-us/article/TMKA-10337	Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://talosintelligence.com/vulnerability_reports/TALOS-2021-1230	Exploit, Third Party Advisory

Impacted products

	Vendor	Product	Version
	trendmicro	home_network_security	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Trend Micro Home Network Security",
          "vendor": "Trend Micro",
          "versions": [
            {
              "status": "affected",
              "version": "6.6.604 and below"
            }
          ]
        }
      ],
      "source": "security@trendmicro.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:trendmicro:home_network_security:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "8A8064F3-3CC8-43CD-AAAB-75C4F8E3AC92",
              "versionEndIncluding": "6.6.604",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Trend Micro Home Network Security version 6.6.604 and earlier is vulnerable to an iotcl stack-based buffer overflow vulnerability which could allow an attacker to issue a specially crafted iotcl to escalate privileges on affected devices. An attacker must first obtain the ability to execute low-privileged code on the target device in order to exploit this vulnerability."
    },
    {
      "lang": "es",
      "value": "La versi\u00f3n 6.6.604 y anteriores de Trend Micro Home Network Security son vulnerables a una vulnerabilidad de desbordamiento del b\u00fafer basada en la pila de iotcl que podr\u00eda permitir a un atacante emitir un iotcl especialmente dise\u00f1ado para escalar privilegios en los dispositivos afectados. Un atacante debe obtener primero la capacidad de ejecutar c\u00f3digo con pocos privilegios en el dispositivo de destino para poder explotar esta vulnerabilidad"
    }
  ],
  "id": "CVE-2021-32457",
  "lastModified": "2026-06-17T03:52:58.797",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 4.6,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 6.4,
        "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": "2021-05-26T14:15:08.773",
  "references": [
    {
      "source": "security@trendmicro.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://helpcenter.trendmicro.com/en-us/article/TMKA-10337"
    },
    {
      "source": "security@trendmicro.com",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2021-1230"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://helpcenter.trendmicro.com/en-us/article/TMKA-10337"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2021-1230"
    }
  ],
  "sourceIdentifier": "security@trendmicro.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2021-32457 (GCVE-0-2021-32457)

Vulnerability from cvelistv5 – Published: 2021-05-26 13:45 – Updated: 2024-08-03 23:17

Summary

Severity

No CVSS data available.

CWE

iotcl Stack-Based Buffer Overflow

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://helpcenter.trendmicro.com/en-us/article/T…	x_refsource_MISC
https://talosintelligence.com/vulnerability_repor…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
Trend Micro	Trend Micro Home Network Security	Affected: 6.6.604 and below

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T23:17:29.504Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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            ],
            "url": "https://helpcenter.trendmicro.com/en-us/article/TMKA-10337"
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            ],
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          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
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          "vendor": "Trend Micro",
          "versions": [
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        }
      ],
      "problemTypes": [
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          "descriptions": [
            {
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              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-06-03T10:32:27.000Z",
        "orgId": "7f7bd7df-cffe-4fdb-ab6d-859363b89272",
        "shortName": "trendmicro"
      },
      "references": [
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            "x_refsource_MISC"
          ],
          "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2021-1230"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security@trendmicro.com",
          "ID": "CVE-2021-32457",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
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                  "product_data": [
                    {
                      "product_name": "Trend Micro Home Network Security",
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                            "version_value": "6.6.604 and below"
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            }
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        "problemtype": {
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            },
            {
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  "cveMetadata": {
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    "datePublished": "2021-05-26T13:45:17.000Z",
    "dateReserved": "2021-05-07T00:00:00.000Z",
    "dateUpdated": "2024-08-03T23:17:29.504Z",
    "state": "PUBLISHED"
  },
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}

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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