Vulnerability-Lookup

FKIE_CVE-2020-9767

Vulnerability from fkie_nvd - Published: 2020-08-14 18:15 - Updated: 2026-06-17 03:28

Severity

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

Summary

A vulnerability related to Dynamic-link Library (“DLL”) loading in the Zoom Sharing Service would allow an attacker who had local access to a machine on which the service was running with elevated privileges to elevate their system privileges as well through use of a malicious DLL. Zoom addressed this issue, which only applies to Windows users, in the 5.0.4 client release.

References

	URL	Tags
	cve@mitre.org	https://support.zoom.us/hc/en-us/articles/360044350792-Security-CVE-2020-9767	Broken Link, Vendor Advisory
	af854a3a-2127-422b-91ae-364da2661108	https://support.zoom.us/hc/en-us/articles/360044350792-Security-CVE-2020-9767	Broken Link, Vendor Advisory

Impacted products

	Vendor	Product	Version
	zoom	sharing_service	5.0.4

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:zoom:sharing_service:5.0.4:*:*:*:*:windows:*:*",
              "matchCriteriaId": "30485B07-6AD9-470D-82F3-F60B3F4FFA40",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability related to Dynamic-link Library (\u201cDLL\u201d) loading in the Zoom Sharing Service would allow an attacker who had local access to a machine on which the service was running with elevated privileges to elevate their system privileges as well through use of a malicious DLL. Zoom addressed this issue, which only applies to Windows users, in the 5.0.4 client release."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad relacionada con la Carga de una Biblioteca de Enlace Din\u00e1mico (\"DLL\") en el servicio Zoom Sharing podr\u00eda permitir a un atacante que tuviera acceso local a una m\u00e1quina en la que se estaba ejecutando el servicio con privilegios elevados elevar sus privilegios system, as\u00ed como tambi\u00e9n mediante el uso de una DLL maliciosa. Zoom corrigi\u00f3 este problema, que solo se aplica a los usuarios de Windows, en la versi\u00f3n del cliente 5.0.4."
    }
  ],
  "id": "CVE-2020-9767",
  "lastModified": "2026-06-17T03:28:32.087",
  "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": "2020-08-14T18:15:12.723",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Broken Link",
        "Vendor Advisory"
      ],
      "url": "https://support.zoom.us/hc/en-us/articles/360044350792-Security-CVE-2020-9767"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Broken Link",
        "Vendor Advisory"
      ],
      "url": "https://support.zoom.us/hc/en-us/articles/360044350792-Security-CVE-2020-9767"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-427"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2020-9767 (GCVE-0-2020-9767)

Vulnerability from cvelistv5 – Published: 2020-08-14 17:07 – Updated: 2024-08-04 10:43

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre CNA under the mitre root

CNA scorecard E 29/100 over 2158 records in the last 180 days details

References

1 reference

URL	Tags
https://support.zoom.us/hc/en-us/articles/3600443…	x_refsource_CONFIRM

Date Public

2020-08-13 00:00

Show details on NVD website

JSON

To clipboard

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            "url": "https://support.zoom.us/hc/en-us/articles/360044350792-Security-CVE-2020-9767"
          }
        ],
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      "affected": [
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          "vendor": "n/a",
          "versions": [
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        }
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          "url": "https://support.zoom.us/hc/en-us/articles/360044350792-Security-CVE-2020-9767"
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      "x_legacyV4Record": {
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          "STATE": "PUBLIC"
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        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
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                      "product_name": "n/a",
                      "version": {
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  "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

Order JSON

How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Publication & reservation Sightings KEV catalogs Other timestamps

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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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