cnvd - cnvd-2025-21327

CNVD-2025-21327

Vulnerability from cnvd - Published: 2025-09-16

Title

Tenda G3 guestWifiRuleRefresh函数缓冲区溢出漏洞

Description

Tenda G3是腾达（Tenda）推出的微企一体化网关，专为中小型企业设计，提供集成化网络解决方案。 Tenda G3存在缓冲区溢出漏洞，该漏洞源于guestWifiRuleRefresh函数中gstUp参数未能正确验证输入数据的长度大小，攻击者可利用该漏洞导致拒绝服务。

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/vulnDetailRecord/VulforDevice/blob/main/Tenda/G3/guestWifiRuleRefresh.md

Impacted products

Name
Tenda G3 v3.0br_V15.11.0.17

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2025-57070",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2025-57070"
    }
  },
  "description": "Tenda G3\u662f\u817e\u8fbe\uff08Tenda\uff09\u63a8\u51fa\u7684\u5fae\u4f01\u4e00\u4f53\u5316\u7f51\u5173\uff0c\u4e13\u4e3a\u4e2d\u5c0f\u578b\u4f01\u4e1a\u8bbe\u8ba1\uff0c\u63d0\u4f9b\u96c6\u6210\u5316\u7f51\u7edc\u89e3\u51b3\u65b9\u6848\u3002\n\nTenda G3\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eguestWifiRuleRefresh\u51fd\u6570\u4e2dgstUp\u53c2\u6570\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\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-2025-21327",
  "openTime": "2025-09-16",
  "products": {
    "product": "Tenda G3 v3.0br_V15.11.0.17"
  },
  "referenceLink": "https://github.com/vulnDetailRecord/VulforDevice/blob/main/Tenda/G3/guestWifiRuleRefresh.md",
  "serverity": "\u9ad8",
  "submitTime": "2025-09-11",
  "title": "Tenda G3 guestWifiRuleRefresh\u51fd\u6570\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e"
}

CVE-2025-57070 (GCVE-0-2025-57070)

Vulnerability from cvelistv5 – Published: 2025-09-09 00:00 – Updated: 2025-09-10 13:44

Summary

Tenda G3 v3.0br_V15.11.0.17 was discovered to contain a stack overflow in the gstUp parameter in the guestWifiRuleRefresh function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request.

Severity ?

7.5 (High)


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

CWE

Assigner

mitre

References

URL

Tags

https://github.com/vulnDetailRecord/VulforDevice/…

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{
  "containers": {
    "adp": [
      {
        "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"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2025-57070",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-09-10T13:18:11.270486Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-121",
                "description": "CWE-121 Stack-based Buffer Overflow",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-09-10T13:44:47.433Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/vulnDetailRecord/VulforDevice/blob/main/Tenda/G3/guestWifiRuleRefresh.md"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Tenda G3 v3.0br_V15.11.0.17 was discovered to contain a stack overflow in the gstUp parameter in the guestWifiRuleRefresh function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-09T16:59:57.941Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://github.com/vulnDetailRecord/VulforDevice/blob/main/Tenda/G3/guestWifiRuleRefresh.md"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2025-57070",
    "datePublished": "2025-09-09T00:00:00.000Z",
    "dateReserved": "2025-08-17T00:00:00.000Z",
    "dateUpdated": "2025-09-10T13:44:47.433Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

CNVD-2025-21327

CVE-2025-57070 (GCVE-0-2025-57070)

Tags

Sightings

Nomenclature