Vulnerability-Lookup

FKIE_CVE-2021-36924

Vulnerability from fkie_nvd - Published: 2021-11-02 13:15 - Updated: 2026-06-17 03:59

Severity

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

Summary

RtsUpx.sys in Realtek RtsUpx USB Utility Driver for Camera/Hub/Audio through 1.14.0.0 allows local low-privileged users to achieve a pool overflow (leading to Escalation of Privileges, Denial of Service, and Code Execution) via a crafted Device IO Control packet to a device.

References

URL	Tags
cve@mitre.org	https://www.realtek.com/images/safe-report/Realtek_RtsUpx_Security_Advisory_Report.pdf	Vendor Advisory
cve@mitre.org	https://www.sentinelone.com/resources/category/report/	Not Applicable
af854a3a-2127-422b-91ae-364da2661108	https://www.realtek.com/images/safe-report/Realtek_RtsUpx_Security_Advisory_Report.pdf	Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://www.sentinelone.com/resources/category/report/	Not Applicable

Impacted products

	Vendor	Product	Version
	realtek	rtsupx_usb_utility_driver	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:realtek:rtsupx_usb_utility_driver:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "45F7AAA7-F155-4CD3-9815-79F6F9A32DB7",
              "versionEndIncluding": "1.14.0.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "RtsUpx.sys in Realtek RtsUpx USB Utility Driver for Camera/Hub/Audio through 1.14.0.0 allows local low-privileged users to achieve a pool overflow (leading to Escalation of Privileges, Denial of Service, and Code Execution) via a crafted Device IO Control packet to a device."
    },
    {
      "lang": "es",
      "value": "El archivo RtsUpx.sys en Realtek RtsUpx USB Utility Driver for Camera/Hub/Audio versiones hasta 1.14.0.0, permite a usuarios locales poco privilegiado conseguir un desbordamiento de la reserva (conllevando a una escalada de privilegios, una denegaci\u00f3n de servicio y una ejecuci\u00f3n de c\u00f3digo) por medio de un paquete de control de entrada y salida de dispositivos manipulado"
    }
  ],
  "id": "CVE-2021-36924",
  "lastModified": "2026-06-17T03:59:38.520",
  "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": "2021-11-02T13:15:07.763",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.realtek.com/images/safe-report/Realtek_RtsUpx_Security_Advisory_Report.pdf"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Not Applicable"
      ],
      "url": "https://www.sentinelone.com/resources/category/report/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.realtek.com/images/safe-report/Realtek_RtsUpx_Security_Advisory_Report.pdf"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Not Applicable"
      ],
      "url": "https://www.sentinelone.com/resources/category/report/"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-367"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2021-36924 (GCVE-0-2021-36924)

Vulnerability from cvelistv5 – Published: 2021-11-02 12:37 – Updated: 2024-08-04 01:09

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

2 references

URL	Tags
https://www.sentinelone.com/resources/category/report/	x_refsource_MISC
https://www.realtek.com/images/safe-report/Realte…	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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        "providerMetadata": {
          "dateUpdated": "2024-08-04T01:09:07.368Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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            "url": "https://www.sentinelone.com/resources/category/report/"
          },
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            "tags": [
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            ],
            "url": "https://www.realtek.com/images/safe-report/Realtek_RtsUpx_Security_Advisory_Report.pdf"
          }
        ],
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    "cna": {
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      "descriptions": [
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      "problemTypes": [
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          ],
          "url": "https://www.realtek.com/images/safe-report/Realtek_RtsUpx_Security_Advisory_Report.pdf"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2021-36924",
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        "affects": {
          "vendor": {
            "vendor_data": [
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                  "product_data": [
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  "cveMetadata": {
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    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
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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.

Detection rules are retrieved from Rulezet.

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.