Vulnerability-Lookup

FKIE_CVE-2020-4102

Vulnerability from fkie_nvd - Published: 2020-12-02 01:15 - Updated: 2026-06-17 03:19

Severity

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

Summary

HCL Notes is susceptible to a Buffer Overflow vulnerability in DXL due to improper validation of user input. A successful exploit could enable an attacker to crash Notes or execute attacker-controlled code on the client system.

References

	URL	Tags
	psirt@hcl.com	https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0085499	Vendor Advisory
	af854a3a-2127-422b-91ae-364da2661108	https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0085499	Vendor Advisory

Impacted products

Vendor	Product	Version
hcltech	notes	*
hcltech	notes	10.0
hcltech	notes	10.0.1
hcltech	notes	10.0.1
hcltech	notes	10.0.1
hcltech	notes	10.0.1
hcltech	notes	10.0.1
hcltech	notes	10.0.1
hcltech	notes	11.0
hcltech	notes	11.0.1

JSON

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{
  "affected": [
    {
      "affectedData": [
        {
          "product": "HCL Notes",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "v9"
            },
            {
              "status": "affected",
              "version": "v10"
            },
            {
              "status": "affected",
              "version": "v11"
            }
          ]
        }
      ],
      "source": "psirt@hcl.com"
    }
  ],
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              "versionStartIncluding": "9.0.0",
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            },
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              "vulnerable": true
            },
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "HCL Notes is susceptible to a Buffer Overflow vulnerability in DXL due to improper validation of user input. A successful exploit could enable an attacker to crash Notes or execute attacker-controlled code on the client system."
    },
    {
      "lang": "es",
      "value": "HCL Notes es susceptible a una vulnerabilidad de Desbordamiento de B\u00fafer en DXL debido a una comprobaci\u00f3n inapropiada de la entrada de usuario.\u0026#xa0;Una explotaci\u00f3n con \u00e9xito podr\u00eda permitir a un atacante bloquear Notes o ejecutar c\u00f3digo controlado por el atacante en el sistema cliente"
    }
  ],
  "id": "CVE-2020-4102",
  "lastModified": "2026-06-17T03:19:33.387",
  "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": [
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        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 6.7,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 0.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2020-12-02T01:15:12.903",
  "references": [
    {
      "source": "psirt@hcl.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://support.hcltechsw.com/csm?id=kb_article\u0026sysparm_article=KB0085499"
    },
    {
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      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://support.hcltechsw.com/csm?id=kb_article\u0026sysparm_article=KB0085499"
    }
  ],
  "sourceIdentifier": "psirt@hcl.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-120"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2020-4102 (GCVE-0-2020-4102)

Vulnerability from cvelistv5 – Published: 2020-12-02 00:56 – Updated: 2024-08-04 07:52

Summary

Severity

No CVSS data available.

CWE

"Buffer overflow"

Assigner

HCL mitre root

References

1 reference

URL	Tags
https://support.hcltechsw.com/csm?id=kb_article&s…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
n/a	HCL Notes	Affected: v9 Affected: v10 Affected: v11

Show details on NVD website

JSON

To clipboard

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          "dateUpdated": "2024-08-04T07:52:20.914Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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            "url": "https://support.hcltechsw.com/csm?id=kb_article\u0026sysparm_article=KB0085499"
          }
        ],
        "title": "CVE Program Container"
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    "cna": {
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          "vendor": "n/a",
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            }
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        }
      ],
      "problemTypes": [
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        "dateUpdated": "2020-12-02T00:56:42.000Z",
        "orgId": "1e47fe04-f25f-42fa-b674-36de2c5e3cfc",
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      ],
      "x_legacyV4Record": {
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          "ASSIGNER": "psirt@hcl.com",
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        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
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                    {
                      "product_name": "HCL Notes",
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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.