Vulnerability-Lookup

CNVD-2026-06825

Vulnerability from cnvd - Published: 2026-01-23

Title

D-Link DIR-823G空指针取消引用漏洞

Description

D-Link DIR-823G是一款家用双频千兆无线路由器，采用第二代802.11ac（Wi-Fi5）技术，专为中高速宽带网络设计。 D-Link DIR-823G存在空指针取消引用漏洞，攻击者可利用该漏洞造成拒绝服务。

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.dlink.com/

Reference

http://www.dlink.com.cn/techsupport/ProductInfo.aspx?m=DIR-823G

Impacted products

Name
D-Link DIR-823G A1V1.0.2B05

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2024-33345",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2024-33345"
    }
  },
  "description": "D-Link DIR-823G\u662f\u4e00\u6b3e\u5bb6\u7528\u53cc\u9891\u5343\u5146\u65e0\u7ebf\u8def\u7531\u5668\uff0c\u91c7\u7528\u7b2c\u4e8c\u4ee3802.11ac\uff08Wi-Fi5\uff09\u6280\u672f\uff0c\u4e13\u4e3a\u4e2d\u9ad8\u901f\u5bbd\u5e26\u7f51\u7edc\u8bbe\u8ba1\u3002\n\nD-Link DIR-823G\u5b58\u5728\u7a7a\u6307\u9488\u53d6\u6d88\u5f15\u7528\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\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.dlink.com/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2026-06825",
  "openTime": "2026-01-23",
  "products": {
    "product": "D-Link DIR-823G A1V1.0.2B05"
  },
  "referenceLink": "http://www.dlink.com.cn/techsupport/ProductInfo.aspx?m=DIR-823G",
  "serverity": "\u9ad8",
  "submitTime": "2024-05-07",
  "title": "D-Link DIR-823G\u7a7a\u6307\u9488\u53d6\u6d88\u5f15\u7528\u6f0f\u6d1e"
}

CVE-2024-33345 (GCVE-0-2024-33345)

Vulnerability from cvelistv5 – Published: 2024-04-29 00:00 – Updated: 2024-08-02 02:27

Summary

D-Link DIR-823G A1V1.0.2B05 was found to contain a Null-pointer dereference in the main function of upload_firmware.cgi, which allows remote attackers to cause a Denial of Service (DoS) via a crafted input.

Severity ?

6.5 (Medium)


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

CWE

Assigner

mitre

References

URL

Tags

	http://www.dlink.com.cn/techsupport/ProductInfo.a…
	https://github.com/n0wstr/IOTVuln/tree/main/DIR-8…

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:a:d-link:dir-823g:a1v1.0.2b05:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "dir-823g",
            "vendor": "d-link",
            "versions": [
              {
                "status": "affected",
                "version": "a1v1.0.2b05"
              }
            ]
          }
        ],
        "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-2024-33345",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-04-30T14:47:30.156665Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-476",
                "description": "CWE-476 NULL Pointer Dereference",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-06-04T17:43:55.146Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T02:27:53.550Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "http://www.dlink.com.cn/techsupport/ProductInfo.aspx?m=DIR-823G"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/n0wstr/IOTVuln/tree/main/DIR-823g/UploadFirmware"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "D-Link DIR-823G A1V1.0.2B05 was found to contain a Null-pointer dereference in the main function of upload_firmware.cgi, which allows remote attackers to cause a Denial of Service (DoS) via a crafted input."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-04-29T18:00:59.378872",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "http://www.dlink.com.cn/techsupport/ProductInfo.aspx?m=DIR-823G"
        },
        {
          "url": "https://github.com/n0wstr/IOTVuln/tree/main/DIR-823g/UploadFirmware"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2024-33345",
    "datePublished": "2024-04-29T00:00:00",
    "dateReserved": "2024-04-23T00:00:00",
    "dateUpdated": "2024-08-02T02:27:53.550Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

CNVD-2026-06825

CVE-2024-33345 (GCVE-0-2024-33345)

Tags

Sightings

Nomenclature