Vulnerability-Lookup

CNVD-2025-27230

Vulnerability from cnvd - Published: 2025-11-07

Title

Tenda AC21缓冲区溢出漏洞

Description

Tenda AC21是腾达公司推出的无线路由器产品。 Tenda AC21 16.03.08.16版本存在缓冲区溢出漏洞，该漏洞源于对/goform/SetPptpServerCfg文件中formSetPPTPServer函数的startIp参数操作不当。攻击者可利用该漏洞通过远程操纵参数触发缓冲区溢出，从而执行任意代码或导致系统崩溃。

Severity

高

Formal description

目前厂商尚未发布升级补丁以修复这个安全问题，请到厂商的主页下载： https://vuldb.com/?id.330906

Reference

https://vuldb.com/?id.330906 https://vuldb.com/?ctiid.330906 https://vuldb.com/?submit.678491 https://github.com/LX-LX88/cve/issues/10 https://www.tenda.com.cn/

Impacted products

Name
Tenda AC21 16.03.08.16

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2025-12611",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2025-12611"
    }
  },
  "description": "Tenda AC21\u662f\u817e\u8fbe\u516c\u53f8\u63a8\u51fa\u7684\u65e0\u7ebf\u8def\u7531\u5668\u4ea7\u54c1\u3002\n\nTenda AC21 16.03.08.16\u7248\u672c\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5bf9/goform/SetPptpServerCfg\u6587\u4ef6\u4e2dformSetPPTPServer\u51fd\u6570\u7684startIp\u53c2\u6570\u64cd\u4f5c\u4e0d\u5f53\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u901a\u8fc7\u8fdc\u7a0b\u64cd\u7eb5\u53c2\u6570\u89e6\u53d1\u7f13\u51b2\u533a\u6ea2\u51fa\uff0c\u4ece\u800c\u6267\u884c\u4efb\u610f\u4ee3\u7801\u6216\u5bfc\u81f4\u7cfb\u7edf\u5d29\u6e83\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5c1a\u672a\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u8fd9\u4e2a\u5b89\u5168\u95ee\u9898\uff0c\u8bf7\u5230\u5382\u5546\u7684\u4e3b\u9875\u4e0b\u8f7d\uff1a\r\nhttps://vuldb.com/?id.330906",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2025-27230",
  "openTime": "2025-11-07",
  "products": {
    "product": "Tenda AC21 16.03.08.16"
  },
  "referenceLink": "https://vuldb.com/?id.330906\r\nhttps://vuldb.com/?ctiid.330906\r\nhttps://vuldb.com/?submit.678491\r\nhttps://github.com/LX-LX88/cve/issues/10\r\nhttps://www.tenda.com.cn/",
  "serverity": "\u9ad8",
  "submitTime": "2025-11-05",
  "title": "Tenda AC21\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e"
}

CVE-2025-12611 (GCVE-0-2025-12611)

Vulnerability from cvelistv5 – Published: 2025-11-03 02:02 – Updated: 2026-02-24 06:21

Title

Tenda AC21 SetPptpServerCfg formSetPPTPServer buffer overflow

Summary

A vulnerability was identified in Tenda AC21 16.03.08.16. This vulnerability affects the function formSetPPTPServer of the file /goform/SetPptpServerCfg. The manipulation of the argument startIp leads to buffer overflow. Remote exploitation of the attack is possible. The exploit is publicly available and might be used.

Severity

8.7 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

8.8 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-11-03 14:16 UTC

CWE

CWE-120 - Buffer Overflow
CWE-119 - Memory Corruption

Assigner

VulDB mitre root Scorecard

References

5 references

URL	Tags
https://vuldb.com/?id.330906	vdb-entrytechnical-description
https://vuldb.com/?ctiid.330906	signaturepermissions-required
https://vuldb.com/?submit.678491	third-party-advisory
https://github.com/LX-LX88/cve/issues/10	broken-linkexploitissue-tracking
https://www.tenda.com.cn/	product

Impacted products

1 product

Vendor	Product	Version
Tenda	AC21	Affected: 16.03.08.16 cpe:2.3:o:tenda:ac21_firmware::::::::

Credits

LX-LX (VulDB User)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-12611",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-11-03T14:16:45.645981Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-11-03T14:26:36.736Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:o:tenda:ac21_firmware:*:*:*:*:*:*:*:*"
          ],
          "product": "AC21",
          "vendor": "Tenda",
          "versions": [
            {
              "status": "affected",
              "version": "16.03.08.16"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "LX-LX (VulDB User)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability was identified in Tenda AC21 16.03.08.16. This vulnerability affects the function formSetPPTPServer of the file /goform/SetPptpServerCfg. The manipulation of the argument startIp leads to buffer overflow. Remote exploitation of the attack is possible. The exploit is publicly available and might be used."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "baseScore": 8.7,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P",
            "version": "4.0"
          }
        },
        {
          "cvssV3_1": {
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R",
            "version": "3.1"
          }
        },
        {
          "cvssV3_0": {
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R",
            "version": "3.0"
          }
        },
        {
          "cvssV2_0": {
            "baseScore": 9,
            "vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR",
            "version": "2.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-120",
              "description": "Buffer Overflow",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-119",
              "description": "Memory Corruption",
              "lang": "en",
              "type": "CWE"
            }
          ]
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-24T06:21:50.068Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
      },
      "references": [
        {
          "name": "VDB-330906 | Tenda AC21 SetPptpServerCfg formSetPPTPServer buffer overflow",
          "tags": [
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://vuldb.com/?id.330906"
        },
        {
          "name": "VDB-330906 | CTI Indicators (IOB, IOC, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/?ctiid.330906"
        },
        {
          "name": "Submit #678491 | Tenda AC21 V16.03.08.16 Buffer Overflow",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/?submit.678491"
        },
        {
          "tags": [
            "broken-link",
            "exploit",
            "issue-tracking"
          ],
          "url": "https://github.com/LX-LX88/cve/issues/10"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://www.tenda.com.cn/"
        }
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      "timeline": [
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          "time": "2025-11-02T00:00:00.000Z",
          "value": "Advisory disclosed"
        },
        {
          "lang": "en",
          "time": "2025-11-02T01:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2025-11-05T01:37:29.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "Tenda AC21 SetPptpServerCfg formSetPPTPServer buffer overflow"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
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    "datePublished": "2025-11-03T02:02:09.734Z",
    "dateReserved": "2025-11-02T06:28:46.133Z",
    "dateUpdated": "2026-02-24T06:21:50.068Z",
    "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.

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.

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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-2025-27230

CVE-2025-12611 (GCVE-0-2025-12611)

Tags

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Nomenclature

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