Vulnerability-Lookup

CNVD-2025-14530

Vulnerability from cnvd - Published: 2025-07-01

Title

TOTOLINK EX1200T setStaticDhcpConfig函数栈缓冲区溢出漏洞

Description

TOTOLINK EX1200T是一款双频无线信号放大器，主要用于扩展现有无线网络的覆盖范围‌。 TOTOLINK EX1200T存在栈缓冲区溢出漏洞，该漏洞源于文件/cgi-bin/cstecgi.cgi中函数setStaticDhcpConfig未能正确验证输入数据的长度大小，攻击者可利用该漏洞在系统上执行任意代码或者导致拒绝服务。

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.totolink.net/

Reference

https://kn0sinna.notion.site/TOTOLINK-EX1200T-stack-based-BufferOverflow-vulnerability-20fb1876cd6e80d5b4d1f7ec16de4ec2

Impacted products

Name
TOTOLINK EX1200T 4.1.2cu.5232_B20210713

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2025-6302",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2025-6302"
    }
  },
  "description": "TOTOLINK EX1200T\u662f\u4e00\u6b3e\u53cc\u9891\u65e0\u7ebf\u4fe1\u53f7\u653e\u5927\u5668\uff0c\u4e3b\u8981\u7528\u4e8e\u6269\u5c55\u73b0\u6709\u65e0\u7ebf\u7f51\u7edc\u7684\u8986\u76d6\u8303\u56f4\u200c\u3002\n\nTOTOLINK EX1200T\u5b58\u5728\u6808\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u6587\u4ef6/cgi-bin/cstecgi.cgi\u4e2d\u51fd\u6570setStaticDhcpConfig\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\u5728\u7cfb\u7edf\u4e0a\u6267\u884c\u4efb\u610f\u4ee3\u7801\u6216\u8005\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.totolink.net/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2025-14530",
  "openTime": "2025-07-01",
  "products": {
    "product": "TOTOLINK EX1200T  4.1.2cu.5232_B20210713"
  },
  "referenceLink": "https://kn0sinna.notion.site/TOTOLINK-EX1200T-stack-based-BufferOverflow-vulnerability-20fb1876cd6e80d5b4d1f7ec16de4ec2",
  "serverity": "\u9ad8",
  "submitTime": "2025-06-27",
  "title": "TOTOLINK EX1200T setStaticDhcpConfig\u51fd\u6570\u6808\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e"
}

CVE-2025-6302 (GCVE-0-2025-6302)

Vulnerability from cvelistv5 – Published: 2025-06-20 03:00 – Updated: 2025-06-20 19:46

Title

TOTOLINK EX1200T cstecgi.cgi setStaticDhcpConfig stack-based overflow

Summary

A vulnerability, which was classified as critical, was found in TOTOLINK EX1200T 4.1.2cu.5232_B20210713. Affected is the function setStaticDhcpConfig of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument Comment leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may 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 2025-06-20 19:42 UTC

CWE

CWE-121 - Stack-based Buffer Overflow
CWE-119 - Memory Corruption

Assigner

VulDB mitre root

References

5 references

URL	Tags
https://vuldb.com/?id.313302	vdb-entrytechnical-description
https://vuldb.com/?ctiid.313302	signaturepermissions-required
https://vuldb.com/?submit.595473	third-party-advisory
https://kn0sinna.notion.site/TOTOLINK-EX1200T-sta…	exploit
https://www.totolink.net/	product

Impacted products

1 product

Vendor	Product	Version
TOTOLINK	EX1200T	Affected: 4.1.2cu.5232_B20210713

Credits

orea (VulDB User)

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-6302",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-06-20T19:42:06.785414Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-06-20T19:46:47.945Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "EX1200T",
          "vendor": "TOTOLINK",
          "versions": [
            {
              "status": "affected",
              "version": "4.1.2cu.5232_B20210713"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "orea (VulDB User)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability, which was classified as critical, was found in TOTOLINK EX1200T 4.1.2cu.5232_B20210713. Affected is the function setStaticDhcpConfig of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument Comment leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used."
        },
        {
          "lang": "de",
          "value": "Es wurde eine Schwachstelle in TOTOLINK EX1200T 4.1.2cu.5232_B20210713 gefunden. Sie wurde als kritisch eingestuft. Es geht dabei um die Funktion setStaticDhcpConfig der Datei /cgi-bin/cstecgi.cgi. Dank der Manipulation des Arguments Comment mit unbekannten Daten kann eine stack-based buffer overflow-Schwachstelle ausgenutzt werden. Der Angriff kann \u00fcber das Netzwerk passieren. Der Exploit steht zur \u00f6ffentlichen Verf\u00fcgung."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "baseScore": 8.7,
            "baseSeverity": "HIGH",
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          }
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            "version": "3.1"
          }
        },
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          "cvssV3_0": {
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            "baseSeverity": "HIGH",
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            "version": "3.0"
          }
        },
        {
          "cvssV2_0": {
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      "providerMetadata": {
        "dateUpdated": "2025-06-20T03:00:16.754Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
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          "tags": [
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            "technical-description"
          ],
          "url": "https://vuldb.com/?id.313302"
        },
        {
          "name": "VDB-313302 | CTI Indicators (IOB, IOC, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/?ctiid.313302"
        },
        {
          "name": "Submit #595473 | TOTOLINK EX1200T EX1200T V4.1.2cu.5232_B20210713 stack-based buffer overflow",
          "tags": [
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          "url": "https://vuldb.com/?submit.595473"
        },
        {
          "tags": [
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        {
          "tags": [
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          "time": "2025-06-19T02:00:00.000Z",
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          "time": "2025-06-19T10:03:15.000Z",
          "value": "VulDB entry last update"
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      "title": "TOTOLINK EX1200T cstecgi.cgi setStaticDhcpConfig stack-based overflow"
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  "cveMetadata": {
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    "datePublished": "2025-06-20T03:00:16.754Z",
    "dateReserved": "2025-06-19T07:58:01.792Z",
    "dateUpdated": "2025-06-20T19:46:47.945Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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CNVD-2025-14530

CVE-2025-6302 (GCVE-0-2025-6302)

Tags

Sightings

Nomenclature

Related by attack behaviour