Vulnerability-Lookup

CNVD-2021-44945

Vulnerability from cnvd - Published: 2021-06-25

Title

D-Link AC2600权限提升漏洞

Description

D-Link AC2600是中国台湾友讯（D-Link）公司的一款无线设备。 D-Link AC2600 存在安全漏洞，该漏洞源于D-Link AC2600(DIR-2640) 1.01B04存在多个出界漏洞，普通权限可以提升为管理员权限，从而导致本地任意代码执行。攻击者可利用该漏洞结合其他漏洞来进一步实现远程代码执行的目的。

Severity

高

Patch Name

D-Link AC2600权限提升漏洞的补丁

Patch Description

Formal description

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-jabber-GuC5mLwG

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-34202

Impacted products

Name
D-Link AC2600

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-34202"
    }
  },
  "description": "D-Link AC2600\u662f\u4e2d\u56fd\u53f0\u6e7e\u53cb\u8baf\uff08D-Link\uff09\u516c\u53f8\u7684\u4e00\u6b3e\u65e0\u7ebf\u8bbe\u5907\u3002\n\nD-Link AC2600 \u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eD-Link AC2600(DIR-2640) 1.01B04\u5b58\u5728\u591a\u4e2a\u51fa\u754c\u6f0f\u6d1e\uff0c\u666e\u901a\u6743\u9650\u53ef\u4ee5\u63d0\u5347\u4e3a\u7ba1\u7406\u5458\u6743\u9650\uff0c\u4ece\u800c\u5bfc\u81f4\u672c\u5730\u4efb\u610f\u4ee3\u7801\u6267\u884c\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed3\u5408\u5176\u4ed6\u6f0f\u6d1e\u6765\u8fdb\u4e00\u6b65\u5b9e\u73b0\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\u7684\u76ee\u7684\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-jabber-GuC5mLwG",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-44945",
  "openTime": "2021-06-25",
  "patchDescription": "D-Link AC2600\u662f\u4e2d\u56fd\u53f0\u6e7e\u53cb\u8baf\uff08D-Link\uff09\u516c\u53f8\u7684\u4e00\u6b3e\u65e0\u7ebf\u8bbe\u5907\u3002\r\n\r\nD-Link AC2600 \u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eD-Link AC2600(DIR-2640) 1.01B04\u5b58\u5728\u591a\u4e2a\u51fa\u754c\u6f0f\u6d1e\uff0c\u666e\u901a\u6743\u9650\u53ef\u4ee5\u63d0\u5347\u4e3a\u7ba1\u7406\u5458\u6743\u9650\uff0c\u4ece\u800c\u5bfc\u81f4\u672c\u5730\u4efb\u610f\u4ee3\u7801\u6267\u884c\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed3\u5408\u5176\u4ed6\u6f0f\u6d1e\u6765\u8fdb\u4e00\u6b65\u5b9e\u73b0\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\u7684\u76ee\u7684\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "D-Link AC2600\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "D-Link AC2600"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-34202",
  "serverity": "\u9ad8",
  "submitTime": "2021-06-18",
  "title": "D-Link AC2600\u6743\u9650\u63d0\u5347\u6f0f\u6d1e"
}

CVE-2021-34202 (GCVE-0-2021-34202)

Vulnerability from cvelistv5 – Published: 2021-06-16 18:56 – Updated: 2026-07-09 00:13

Summary

There are multiple out-of-bounds vulnerabilities in some processes of D-Link AC2600(DIR-2640) 1.01B04. Ordinary permissions can be elevated to administrator permissions, resulting in local arbitrary code execution. An attacker can combine other vulnerabilities to further achieve the purpose of remote code execution.

Severity

No CVSS data available.

CWE

Assigner

mitre CNA under the mitre root

CNA scorecard E 28/100 over 2293 records in the last 180 days details

References

2 references

URL	Tags
https://www.dlink.com/en/security-bulletin/
https://github.com/liyansong2018/CVE/tree/main/20…

Show details on NVD website

JSON

To clipboard

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        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.dlink.com/en/security-bulletin/"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/liyansong2018/CVE/tree/main/2021/CVE-2021-34202"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
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          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
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        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "There are multiple out-of-bounds vulnerabilities in some processes of D-Link AC2600(DIR-2640) 1.01B04. Ordinary permissions can be elevated to administrator permissions, resulting in local arbitrary code execution. An attacker can combine other vulnerabilities to further achieve the purpose of remote code execution."
        }
      ],
      "problemTypes": [
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          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-05T15:49:35.157Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://www.dlink.com/en/security-bulletin/"
        },
        {
          "url": "https://github.com/liyansong2018/CVE/tree/main/2021/CVE-2021-34202"
        }
      ],
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          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2021-34202",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
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            }
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        "problemtype": {
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            {
              "description": [
                {
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                  "value": "n/a"
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        },
        "references": {
          "reference_data": [
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              "name": "http://d-link.com",
              "refsource": "MISC",
              "url": "http://d-link.com"
            },
            {
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              "url": "https://www.dlink.com/en/security-bulletin/"
            },
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            },
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    "dateReserved": "2021-06-07T00:00:00.000Z",
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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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.
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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.
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CNVD-2021-44945

CVE-2021-34202 (GCVE-0-2021-34202)

Tags

Sightings

Nomenclature

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