Vulnerability-Lookup

FKIE_CVE-2021-28151

Vulnerability from fkie_nvd - Published: 2021-05-06 16:15 - Updated: 2026-06-17 03:45

Severity

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

Summary

Hongdian H8922 3.0.5 devices allow OS command injection via shell metacharacters into the ip-address (aka Destination) field to the tools.cgi ping command, which is accessible with the username guest and password guest.

References

URL	Tags
cve@mitre.org	http://en.hongdian.com/Products/Details/H8922	Product, Vendor Advisory
cve@mitre.org	https://ssd-disclosure.com/ssd-advisory-hongdian-h8922-multiple-vulnerabilities/	Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	http://en.hongdian.com/Products/Details/H8922	Product, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://ssd-disclosure.com/ssd-advisory-hongdian-h8922-multiple-vulnerabilities/	Exploit, Third Party Advisory

Impacted products

	Vendor	Product	Version
	hongdian	h8922_firmware	3.0.5
	hongdian	h8922	-

JSON

To clipboard

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  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
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  "configurations": [
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      "nodes": [
        {
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              "criteria": "cpe:2.3:o:hongdian:h8922_firmware:3.0.5:*:*:*:*:*:*:*",
              "matchCriteriaId": "D748F6D1-B686-4DB3-8FCF-FCB6909CF34A",
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Hongdian H8922 3.0.5 devices allow OS command injection via shell metacharacters into the ip-address (aka Destination) field to the tools.cgi ping command, which is accessible with the username guest and password guest."
    },
    {
      "lang": "es",
      "value": "Los dispositivos Hongdian H8922 versi\u00f3n 3.0.5, permiten una inyecci\u00f3n de comandos del sistema operativo por medio de metacaracteres de shell en el campo ip-address (tambi\u00e9n se conoce como Destination) para el comando ping tools.cgi, al que puede ser accesible con el nombre de usuario guest y la contrase\u00f1a guest"
    }
  ],
  "id": "CVE-2021-28151",
  "lastModified": "2026-06-17T03:45:53.230",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 9.0,
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "COMPLETE",
          "vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 8.0,
        "impactScore": 10.0,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
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    ]
  },
  "published": "2021-05-06T16:15:07.390",
  "references": [
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      "tags": [
        "Product",
        "Vendor Advisory"
      ],
      "url": "http://en.hongdian.com/Products/Details/H8922"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://ssd-disclosure.com/ssd-advisory-hongdian-h8922-multiple-vulnerabilities/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Product",
        "Vendor Advisory"
      ],
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    },
    {
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      "tags": [
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        "Third Party Advisory"
      ],
      "url": "https://ssd-disclosure.com/ssd-advisory-hongdian-h8922-multiple-vulnerabilities/"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-78"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2021-28151 (GCVE-0-2021-28151)

Vulnerability from cvelistv5 – Published: 2021-05-06 15:11 – Updated: 2024-08-03 21:40

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre CNA under the mitre root

CNA scorecard E 28/100 over 2327 records in the last 180 days details

References

2 references

URL	Tags
http://en.hongdian.com/Products/Details/H8922	x_refsource_MISC
https://ssd-disclosure.com/ssd-advisory-hongdian-…	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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      {
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          "dateUpdated": "2024-08-03T21:40:12.163Z",
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          },
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            ],
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          }
        ],
        "title": "CVE Program Container"
      }
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              "type": "text"
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          ]
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        },
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          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://ssd-disclosure.com/ssd-advisory-hongdian-h8922-multiple-vulnerabilities/"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2021-28151",
          "STATE": "PUBLIC"
        },
        "affects": {
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                "product": {
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            {
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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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