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CNVD-2026-33597

Vulnerability from cnvd - Published: 2026-08-26

Title

Tenda G0缓冲区溢出漏洞（CNVD-2026-33597）

Description

Tenda G0是中国Tenda公司的一个路由器。 Tenda G0存在缓冲区溢出漏洞，该漏洞源于Saveqqlist函数未能正确验证qqStr和markStr参数的长度，攻击者可利用该漏洞通过精心构造的HTTP请求导致拒绝服务（DoS）。

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/xhh0124/SemVulLLM/tree/main/PW201A/L7IM

Impacted products

Name
Tenda G0 v15.11.0.5

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2026-36805",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2026-36805"
    }
  },
  "description": "Tenda G0\u662f\u4e2d\u56fdTenda\u516c\u53f8\u7684\u4e00\u4e2a\u8def\u7531\u5668\u3002\n\nTenda G0\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eSaveqqlist\u51fd\u6570\u672a\u80fd\u6b63\u786e\u9a8c\u8bc1qqStr\u548cmarkStr\u53c2\u6570\u7684\u957f\u5ea6\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u901a\u8fc7\u7cbe\u5fc3\u6784\u9020\u7684HTTP\u8bf7\u6c42\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\uff08DoS\uff09\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-2026-33597",
  "openTime": "2026-08-26",
  "products": {
    "product": "Tenda G0 v15.11.0.5"
  },
  "referenceLink": "https://github.com/xhh0124/SemVulLLM/tree/main/PW201A/L7IM",
  "serverity": "\u9ad8",
  "submitTime": "2026-06-11",
  "title": "Tenda G0\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2026-33597\uff09"
}

CVE-2026-36805 (GCVE-0-2026-36805)

Vulnerability from cvelistv5 – Published: 2026-06-09 00:00 – Updated: 2026-06-10 16:12

Summary

Shenzhen Tenda Technology Co., Ltd Tenda G0 v15.11.0.5 was discovered to contain multiple buffer overflows in the Saveqqlist function via the qqStr and markStr parameters. These vulnerabilities allow attackers to cause a Denial of Service (DoS) via a crafted HTTP 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 2026-06-10 16:12 UTC

CWE

n/a
CWE-121 - Stack-based Buffer Overflow

Assigner

mitre mitre root Scorecard

References

1 reference

URL	Tags
https://github.com/xhh0124/SemVulLLM/tree/main/PW…

Show details on NVD website

JSON

To clipboard

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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-2026-36805",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-10T16:12:11.468270Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-121",
                "description": "CWE-121 Stack-based Buffer Overflow",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-06-10T16:12:51.997Z",
          "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"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Shenzhen Tenda Technology Co., Ltd Tenda G0 v15.11.0.5 was discovered to contain multiple buffer overflows in the Saveqqlist function via the qqStr and markStr parameters. These vulnerabilities allow attackers to cause a Denial of Service (DoS) via a crafted HTTP request."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-09T18:12:39.361Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://github.com/xhh0124/SemVulLLM/tree/main/PW201A/L7IM"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2026-36805",
    "datePublished": "2026-06-09T00:00:00.000Z",
    "dateReserved": "2026-04-06T00:00:00.000Z",
    "dateUpdated": "2026-06-10T16:12:51.997Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

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Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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-2026-33597

CVE-2026-36805 (GCVE-0-2026-36805)

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