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CNVD-2025-16869

Vulnerability from cnvd - Published: 2025-07-25

Title

D-Link DIR-816L命令注入漏洞

Description

D-Link DIR-816L是中国友讯（D-Link）公司的一款无线路由器。 D-Link DIR-816L 2.06B01及之前版本存在命令注入漏洞，该漏洞源于环境变量处理组件中lxmldbc_system函数未能正确过滤构造命令特殊字符、命令等。目前没有详细的漏洞细节提供。

Severity

中

Formal description

厂商尚未提供漏洞修复方案，请关注厂商主页更新： https://github.com/bananashipsBBQ/CVE/blob/main/D-Link%20DIR-816L%20Remote%20Arbitrary%20Command%20Execution%20Vulnerability%20in%20ssdpcgi.md

Reference

https://nvd.nist.gov/vuln/detail/CVE-2025-7836

Impacted products

Name
D-Link DIR-816L <=2.06B01

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2025-7836",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2025-7836"
    }
  },
  "description": "D-Link DIR-816L\u662f\u4e2d\u56fd\u53cb\u8baf\uff08D-Link\uff09\u516c\u53f8\u7684\u4e00\u6b3e\u65e0\u7ebf\u8def\u7531\u5668\u3002\n\nD-Link DIR-816L 2.06B01\u53ca\u4e4b\u524d\u7248\u672c\u5b58\u5728\u547d\u4ee4\u6ce8\u5165\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u73af\u5883\u53d8\u91cf\u5904\u7406\u7ec4\u4ef6\u4e2dlxmldbc_system\u51fd\u6570\u672a\u80fd\u6b63\u786e\u8fc7\u6ee4\u6784\u9020\u547d\u4ee4\u7279\u6b8a\u5b57\u7b26\u3001\u547d\u4ee4\u7b49\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\u3002",
  "formalWay": "\u5382\u5546\u5c1a\u672a\u63d0\u4f9b\u6f0f\u6d1e\u4fee\u590d\u65b9\u6848\uff0c\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u66f4\u65b0\uff1a\r\nhttps://github.com/bananashipsBBQ/CVE/blob/main/D-Link%20DIR-816L%20Remote%20Arbitrary%20Command%20Execution%20Vulnerability%20in%20ssdpcgi.md",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2025-16869",
  "openTime": "2025-07-25",
  "products": {
    "product": "D-Link DIR-816L \u003c=2.06B01"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2025-7836",
  "serverity": "\u4e2d",
  "submitTime": "2025-07-25",
  "title": "D-Link DIR-816L\u547d\u4ee4\u6ce8\u5165\u6f0f\u6d1e"
}

CVE-2025-7836 (GCVE-0-2025-7836)

Vulnerability from cvelistv5 – Published: 2025-07-19 16:44 – Updated: 2025-07-21 15:57 Unsupported When Assigned

Title

D-Link DIR-816L Environment Variable cgibin lxmldbc_system command injection

Summary

A vulnerability has been found in D-Link DIR-816L up to 2.06B01 and classified as critical. Affected by this vulnerability is the function lxmldbc_system of the file /htdocs/cgibin of the component Environment Variable Handler. The manipulation leads to command injection. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

Severity

5.3 (Medium)


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

6.3 (Medium)


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

6.3 (Medium)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-07-21 15:56 UTC

CWE

CWE-77 - Command Injection
CWE-74 - Injection

Assigner

VulDB mitre root Scorecard

References

5 references

URL	Tags
https://vuldb.com/?id.316939	vdb-entrytechnical-description
https://vuldb.com/?ctiid.316939	signaturepermissions-required
https://vuldb.com/?submit.617359	third-party-advisory
https://github.com/bananashipsBBQ/CVE/blob/main/D…	exploit
https://www.dlink.com/	product

Impacted products

1 product

Vendor	Product	Version
D-Link	DIR-816L	Affected: 2.06B01

Credits

bananaship (VulDB User)

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-7836",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-07-21T15:56:58.059217Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-07-21T15:57:08.788Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "modules": [
            "Environment Variable Handler"
          ],
          "product": "DIR-816L",
          "vendor": "D-Link",
          "versions": [
            {
              "status": "affected",
              "version": "2.06B01"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "bananaship (VulDB User)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability has been found in D-Link DIR-816L up to 2.06B01 and classified as critical. Affected by this vulnerability is the function lxmldbc_system of the file /htdocs/cgibin of the component Environment Variable Handler. The manipulation leads to command injection. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer."
        },
        {
          "lang": "de",
          "value": "In D-Link DIR-816L bis 2.06B01 wurde eine Schwachstelle gefunden. Sie wurde als kritisch eingestuft. Hierbei betrifft es die Funktion lxmldbc_system der Datei /htdocs/cgibin der Komponente Environment Variable Handler. Durch das Manipulieren mit unbekannten Daten kann eine command injection-Schwachstelle ausgenutzt werden. Umgesetzt werden kann der Angriff \u00fcber das Netzwerk. Der Exploit steht zur \u00f6ffentlichen Verf\u00fcgung."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P",
            "version": "4.0"
          }
        },
        {
          "cvssV3_1": {
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R",
            "version": "3.1"
          }
        },
        {
          "cvssV3_0": {
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R",
            "version": "3.0"
          }
        },
        {
          "cvssV2_0": {
            "baseScore": 6.5,
            "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR",
            "version": "2.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-77",
              "description": "Command Injection",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-74",
              "description": "Injection",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-07-19T16:44:06.551Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
      },
      "references": [
        {
          "name": "VDB-316939 | D-Link DIR-816L Environment Variable cgibin lxmldbc_system command injection",
          "tags": [
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://vuldb.com/?id.316939"
        },
        {
          "name": "VDB-316939 | CTI Indicators (IOB, IOC, TTP, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/?ctiid.316939"
        },
        {
          "name": "Submit #617359 | D-Link DIR-816L \u003c= v2.06B01 remote commend",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/?submit.617359"
        },
        {
          "tags": [
            "exploit"
          ],
          "url": "https://github.com/bananashipsBBQ/CVE/blob/main/D-Link%20DIR-816L%20Remote%20Arbitrary%20Command%20Execution%20Vulnerability%20in%20ssdpcgi.md"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://www.dlink.com/"
        }
      ],
      "tags": [
        "unsupported-when-assigned"
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2025-07-18T00:00:00.000Z",
          "value": "Advisory disclosed"
        },
        {
          "lang": "en",
          "time": "2025-07-18T02:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2025-07-18T21:31:17.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "D-Link DIR-816L Environment Variable cgibin lxmldbc_system command injection"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2025-7836",
    "datePublished": "2025-07-19T16:44:06.551Z",
    "dateReserved": "2025-07-18T19:26:06.521Z",
    "dateUpdated": "2025-07-21T15:57:08.788Z",
    "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.

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-2025-16869

CVE-2025-7836 (GCVE-0-2025-7836)

Tags

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Nomenclature

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