Vulnerability-Lookup

CNVD-2026-33601

Vulnerability from cnvd - Published: 2026-08-26

Title

Tenda G0堆栈缓冲区溢出漏洞

Description

Tenda G0是中国Tenda公司的一个路由器。 Tenda G0存在堆栈缓冲区溢出漏洞，该漏洞源于formSetDebugCfgr函数中未能正确处理enable等参数，导致栈缓冲区写入越界，攻击者可利用该漏洞通过构造的HTTP请求触发拒绝服务（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/G0/formSetDebugCfg

Impacted products

Name
Tenda G0 15.11.0.5

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2026-36798",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2026-36798"
    }
  },
  "description": "Tenda G0\u662f\u4e2d\u56fdTenda\u516c\u53f8\u7684\u4e00\u4e2a\u8def\u7531\u5668\u3002\n\nTenda G0\u5b58\u5728\u5806\u6808\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eformSetDebugCfgr\u51fd\u6570\u4e2d\u672a\u80fd\u6b63\u786e\u5904\u7406enable\u7b49\u53c2\u6570\uff0c\u5bfc\u81f4\u6808\u7f13\u51b2\u533a\u5199\u5165\u8d8a\u754c\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u901a\u8fc7\u6784\u9020\u7684HTTP\u8bf7\u6c42\u89e6\u53d1\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-2026-33601",
  "openTime": "2026-08-26",
  "products": {
    "product": "Tenda G0 15.11.0.5"
  },
  "referenceLink": "https://github.com/xhh0124/SemVulLLM/tree/main/G0/formSetDebugCfg",
  "serverity": "\u9ad8",
  "submitTime": "2026-06-11",
  "title": "Tenda G0\u5806\u6808\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e"
}

CVE-2026-36798 (GCVE-0-2026-36798)

Vulnerability from cvelistv5 – Published: 2026-06-09 00:00 – Updated: 2026-06-10 19:32

Summary

Shenzhen Tenda Technology Co., Ltd Tenda G0 v15.11.0.5 was discovered to contain multiple stack overflows in the formSetDebugCfgr function via the enable, level, and module parameters. These vulnerabilities allow attackers to cause a Denial of Service (DoS) via a crafted HTTP request.

Severity

6.5 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-10 19:09 UTC

CWE

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

Assigner

mitre mitre root

References

1 reference

URL	Tags
https://github.com/xhh0124/SemVulLLM/tree/main/G0…

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 6.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "REQUIRED",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-36798",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-10T19:09:11.137512Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-121",
                "description": "CWE-121 Stack-based Buffer Overflow",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-06-10T19:32:30.228Z",
          "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 stack overflows in the formSetDebugCfgr function via the enable, level, and module 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": "2026-06-09T18:12:36.851Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://github.com/xhh0124/SemVulLLM/tree/main/G0/formSetDebugCfg"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2026-36798",
    "datePublished": "2026-06-09T00:00:00.000Z",
    "dateReserved": "2026-04-06T00:00:00.000Z",
    "dateUpdated": "2026-06-10T19:32:30.228Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Action not permitted

CNVD-2026-33601

CVE-2026-36798 (GCVE-0-2026-36798)

Tags

Sightings

Nomenclature