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CNVD-2025-08906

Vulnerability from cnvd - Published: 2025-04-28

Title

Tenda W6_S缓冲区溢出漏洞（CNVD-2025-08906）

Description

Tenda W6_S是一款无线路由器。 Tenda W6_S存在缓冲区溢出漏洞，该漏洞源于set_local_time函数在处理通过POST请求传递的time参数时，未对参数长度进行有效校验，导致缓冲区溢出，攻击者可利用该漏洞导致web服务器崩溃，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://nvd.nist.gov/vuln/detail/CVE-2025-28221

Impacted products

Name
Tenda W6_S 1.0.0.4_510

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2025-28221",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2025-28221"
    }
  },
  "description": "Tenda W6_S\u662f\u4e00\u6b3e\u65e0\u7ebf\u8def\u7531\u5668\u3002\n\nTenda W6_S\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eset_local_time\u51fd\u6570\u5728\u5904\u7406\u901a\u8fc7POST\u8bf7\u6c42\u4f20\u9012\u7684time\u53c2\u6570\u65f6\uff0c\u672a\u5bf9\u53c2\u6570\u957f\u5ea6\u8fdb\u884c\u6709\u6548\u6821\u9a8c\uff0c\u5bfc\u81f4\u7f13\u51b2\u533a\u6ea2\u51fa\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4web\u670d\u52a1\u5668\u5d29\u6e83\uff0c\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-2025-08906",
  "openTime": "2025-04-28",
  "products": {
    "product": "Tenda W6_S 1.0.0.4_510"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2025-28221",
  "serverity": "\u9ad8",
  "submitTime": "2025-04-02",
  "title": "Tenda W6_S\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2025-08906\uff09"
}

CVE-2025-28221 (GCVE-0-2025-28221)

Vulnerability from cvelistv5 – Published: 2025-03-28 00:00 – Updated: 2025-04-21 18:58

Summary

Tenda W6_S v1.0.0.4_510 has a Buffer Overflow vulnerability in the set_local_time function, which allows remote attackers to cause web server crash via parameter time passed to the binary through a POST request.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-03-31 21:09 UTC

CWE

n/a
CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Assigner

mitre mitre root

References

1 reference

URL	Tags
https://github.com/IdaJea/IOT_vuln_1/blob/master/…

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JSON

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        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 7.5,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
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                "id": "CVE-2025-28221",
                "options": [
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                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-03-31T21:09:30.216314Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-120",
                "description": "CWE-120 Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-04-21T18:58:32.598Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
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      ],
      "descriptions": [
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              "type": "text"
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      "providerMetadata": {
        "dateUpdated": "2025-03-28T13:45:54.149Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://github.com/IdaJea/IOT_vuln_1/blob/master/w6_s_v1.0.0.4/time.pdf"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2025-28221",
    "datePublished": "2025-03-28T00:00:00.000Z",
    "dateReserved": "2025-03-11T00:00:00.000Z",
    "dateUpdated": "2025-04-21T18:58:32.598Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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Confirmed: The vulnerability has been validated from an analyst's perspective.
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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.
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CNVD-2025-08906

CVE-2025-28221 (GCVE-0-2025-28221)

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