Vulnerability-Lookup

FKIE_CVE-2021-45997

Vulnerability from fkie_nvd - Published: 2022-02-04 02:15 - Updated: 2026-06-17 04:14

Severity

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

Summary

Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a stack overflow in the function formSetPortMapping. This vulnerability allows attackers to cause a Denial of Service (DoS) via the portMappingServer, portMappingProtocol, portMappingWan, porMappingtInternal, and portMappingExternal parameters.

References

	URL	Tags
	cve@mitre.org	https://github.com/pjqwudi/my_vuln/blob/main/Tenda/vuln_11/11.md	Broken Link, Third Party Advisory
	af854a3a-2127-422b-91ae-364da2661108	https://github.com/pjqwudi/my_vuln/blob/main/Tenda/vuln_11/11.md	Broken Link, Third Party Advisory

Impacted products

Vendor	Product	Version
tendacn	g1_firmware	15.11.0.17\(9502\)_cn
tendacn	g1	-
tendacn	g3_firmware	15.11.0.17\(9502\)_cn
tendacn	g3	-

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
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              "version": "n/a"
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    },
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      "lang": "es",
      "value": "Se ha detectado que los routers Tenda G1 y G3 versi\u00f3n v15.11.0.17(9502)_CN, contienen un desbordamiento de pila en la funci\u00f3n formSetPortMapping. Esta vulnerabilidad permite a atacantes causar una denegaci\u00f3n de servicio (DoS) por medio de los par\u00e1metros portMappingServer, portMappingProtocol, portMappingWan, porMappingtInternal y portMappingExternal"
    }
  ],
  "id": "CVE-2021-45997",
  "lastModified": "2026-06-17T04:14:23.450",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 7.8,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 6.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
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          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
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          "version": "3.1"
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        "impactScore": 3.6,
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  "published": "2022-02-04T02:15:09.037",
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      "source": "cve@mitre.org",
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  "vulnStatus": "Modified",
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          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2021-45997 (GCVE-0-2021-45997)

Vulnerability from cvelistv5 – Published: 2022-02-04 01:33 – Updated: 2024-08-04 04:54

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

1 reference

URL	Tags
https://github.com/pjqwudi/my_vuln/blob/main/Tend…	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

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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.