Vulnerability-Lookup

CNVD-2025-20161

Vulnerability from cnvd - Published: 2025-09-03

Title

深圳市吉祥腾达科技有限公司AC6 fgets函数缓冲区溢出漏洞

Description

深圳市吉祥腾达科技有限公司AC6是腾达（Tenda）推出的一款双频无线路由器，支持IPv4和IPv6协议，采用802.11ac/n无线标准，提供1167Mbps的无线传输速率。深圳市吉祥腾达科技有限公司AC6存在缓冲区溢出漏洞，该漏洞源于函数fgets未能正确验证输入数据的长度大小，攻击者可利用该漏洞在系统上执行任意代码或者导致拒绝服务。

Severity

高

Formal description

目前厂商尚未发布升级程序修复该安全问题，详情见厂商官网： https://www.tenda.com.cn/

Reference

https://github.com/Davidteeri/Bug-Report/blob/main/Tenda/AC6%20buffer%20overflow.md

Impacted products

Name
深圳市吉祥腾达科技有限公司 AC6 AC6 _US_AC6V1.0BR_V15.03.05.16

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JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2023-39670",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2023-39670"
    }
  },
  "description": "\u6df1\u5733\u5e02\u5409\u7965\u817e\u8fbe\u79d1\u6280\u6709\u9650\u516c\u53f8AC6\u662f\u817e\u8fbe\uff08Tenda\uff09\u63a8\u51fa\u7684\u4e00\u6b3e\u53cc\u9891\u65e0\u7ebf\u8def\u7531\u5668\uff0c\u652f\u6301IPv4\u548cIPv6\u534f\u8bae\uff0c\u91c7\u7528802.11ac/n\u65e0\u7ebf\u6807\u51c6\uff0c\u63d0\u4f9b1167Mbps\u7684\u65e0\u7ebf\u4f20\u8f93\u901f\u7387\u3002\n\n\u6df1\u5733\u5e02\u5409\u7965\u817e\u8fbe\u79d1\u6280\u6709\u9650\u516c\u53f8AC6\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u51fd\u6570fgets\u672a\u80fd\u6b63\u786e\u9a8c\u8bc1\u8f93\u5165\u6570\u636e\u7684\u957f\u5ea6\u5927\u5c0f\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5728\u7cfb\u7edf\u4e0a\u6267\u884c\u4efb\u610f\u4ee3\u7801\u6216\u8005\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5c1a\u672a\u53d1\u5e03\u5347\u7ea7\u7a0b\u5e8f\u4fee\u590d\u8be5\u5b89\u5168\u95ee\u9898\uff0c\u8be6\u60c5\u89c1\u5382\u5546\u5b98\u7f51\uff1a\r\nhttps://www.tenda.com.cn/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2025-20161",
  "openTime": "2025-09-03",
  "products": {
    "product": "\u6df1\u5733\u5e02\u5409\u7965\u817e\u8fbe\u79d1\u6280\u6709\u9650\u516c\u53f8 AC6 AC6 _US_AC6V1.0BR_V15.03.05.16"
  },
  "referenceLink": "https://github.com/Davidteeri/Bug-Report/blob/main/Tenda/AC6%20buffer%20overflow.md",
  "serverity": "\u9ad8",
  "submitTime": "2023-08-24",
  "title": "\u6df1\u5733\u5e02\u5409\u7965\u817e\u8fbe\u79d1\u6280\u6709\u9650\u516c\u53f8AC6 fgets\u51fd\u6570\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e"
}

CVE-2023-39670 (GCVE-0-2023-39670)

Vulnerability from cvelistv5 – Published: 2023-08-18 00:00 – Updated: 2024-10-07 17:45

Summary

Tenda AC6 _US_AC6V1.0BR_V15.03.05.16 was discovered to contain a buffer overflow via the function fgets.

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-10-07 17:44 UTC

CWE

Assigner

mitre mitre root

References

2 references

URL	Tags
https://www.tendacn.com/download/list-3.html
https://github.com/Davidteeri/Bug-Report/blob/mai…

Impacted products

1 product

Vendor	Product	Version
tenda	ac6	Affected: 1.0br_v15.03.05.16 cpe:2.3:h:tenda:ac6:1.0:::::::*

Show details on NVD website

JSON

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{
  "containers": {
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      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T18:18:09.326Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
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        "references": [
          {
            "tags": [
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            ],
            "url": "https://www.tendacn.com/download/list-3.html"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/Davidteeri/Bug-Report/blob/main/Tenda/AC6%20buffer%20overflow.md"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:h:tenda:ac6:1.0:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "ac6",
            "vendor": "tenda",
            "versions": [
              {
                "status": "affected",
                "version": "1.0br_v15.03.05.16"
              }
            ]
          }
        ],
        "metrics": [
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            "other": {
              "content": {
                "id": "CVE-2023-39670",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-10-07T17:44:56.501034Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-10-07T17:45:50.219Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
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          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
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      ],
      "problemTypes": [
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      "providerMetadata": {
        "dateUpdated": "2023-08-18T02:44:52.678Z",
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      "references": [
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          "url": "https://www.tendacn.com/download/list-3.html"
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        }
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  },
  "cveMetadata": {
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    "datePublished": "2023-08-18T00:00:00.000Z",
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    "state": "PUBLISHED"
  },
  "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.

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CNVD-2025-20161

CVE-2023-39670 (GCVE-0-2023-39670)

Tags

Sightings

Nomenclature

Related by attack behaviour