Vulnerability-Lookup

CNVD-2026-32591

Vulnerability from cnvd - Published: 2026-08-19

Title

D-Link DI-8100缓冲区溢出漏洞（CNVD-2026-32591）

Description

D-Link DI-8100是友讯（D-Link）专为中小型企业设计的‌有线上网行为管理路由器‌。 D-Link DI-8100存在缓冲区溢出漏洞，该漏洞源于HTTP Handler组件中/auto_reboot.asp文件的sprintf函数未能正确处理enable/time参数，导致栈缓冲区溢出，目前没有详细的漏洞细节提供。。

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/us/en

Reference

https://vuldb.com/vuln/361130

Impacted products

Name
D-Link DI-8100 16.07.26A1

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2026-7853",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2026-7853"
    }
  },
  "description": "D-Link DI-8100\u662f\u53cb\u8baf\uff08D-Link\uff09\u4e13\u4e3a\u4e2d\u5c0f\u578b\u4f01\u4e1a\u8bbe\u8ba1\u7684\u200c\u6709\u7ebf\u4e0a\u7f51\u884c\u4e3a\u7ba1\u7406\u8def\u7531\u5668\u200c\u3002\n\nD-Link DI-8100\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eHTTP Handler\u7ec4\u4ef6\u4e2d/auto_reboot.asp\u6587\u4ef6\u7684sprintf\u51fd\u6570\u672a\u80fd\u6b63\u786e\u5904\u7406enable/time\u53c2\u6570\uff0c\u5bfc\u81f4\u6808\u7f13\u51b2\u533a\u6ea2\u51fa\uff0c\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\u3002\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/us/en",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2026-32591",
  "openTime": "2026-08-19",
  "products": {
    "product": "D-Link DI-8100 16.07.26A1"
  },
  "referenceLink": "https://vuldb.com/vuln/361130",
  "serverity": "\u9ad8",
  "submitTime": "2026-05-06",
  "title": "D-Link DI-8100\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2026-32591\uff09"
}

CVE-2026-7853 (GCVE-0-2026-7853)

Vulnerability from cvelistv5 – Published: 2026-05-05 17:45 – Updated: 2026-05-05 18:46

Title

D-Link DI-8100 HTTP auto_reboot.asp sprintf buffer overflow

Summary

A weakness has been identified in D-Link DI-8100 16.07.26A1. Affected is the function sprintf of the file /auto_reboot.asp of the component HTTP Handler. This manipulation of the argument enable/time causes buffer overflow. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks.

Severity

9.3 (Critical)


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

9.8 (Critical)


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

9.8 (Critical)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-05 18:45 UTC

CWE

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

Assigner

VulDB mitre root

References

5 references

URL	Tags
https://vuldb.com/vuln/361130	vdb-entrytechnical-description
https://vuldb.com/vuln/361130/cti	signaturepermissions-required
https://vuldb.com/submit/807837	third-party-advisory
https://github.com/draw-ctf/report/blob/main/DI-8…	exploit
https://www.dlink.com/	product

Impacted products

1 product

Vendor	Product	Version
D-Link	DI-8100	Affected: 16.07.26A1

Credits

draw (VulDB User)

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-7853",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-05T18:45:40.057542Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-05T18:46:18.528Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "modules": [
            "HTTP Handler"
          ],
          "product": "DI-8100",
          "vendor": "D-Link",
          "versions": [
            {
              "status": "affected",
              "version": "16.07.26A1"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "draw (VulDB User)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A weakness has been identified in D-Link DI-8100 16.07.26A1. Affected is the function sprintf of the file /auto_reboot.asp of the component HTTP Handler. This manipulation of the argument enable/time causes buffer overflow. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "baseScore": 9.3,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P",
            "version": "4.0"
          }
        },
        {
          "cvssV3_1": {
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R",
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          }
        },
        {
          "cvssV2_0": {
            "baseScore": 10,
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        {
          "descriptions": [
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              "cweId": "CWE-119",
              "description": "Memory Corruption",
              "lang": "en",
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      "providerMetadata": {
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        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
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      },
      "references": [
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          "tags": [
            "vdb-entry",
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          ],
          "url": "https://vuldb.com/vuln/361130"
        },
        {
          "name": "VDB-361130 | CTI Indicators (IOB, IOC, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/vuln/361130/cti"
        },
        {
          "name": "Submit #807837 | D-Link DI-8100 16.07.26A1 Denial of Service",
          "tags": [
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          ],
          "url": "https://vuldb.com/submit/807837"
        },
        {
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          "url": "https://www.dlink.com/"
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          "time": "2026-05-05T02:00:00.000Z",
          "value": "VulDB entry created"
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        {
          "lang": "en",
          "time": "2026-05-05T13:44:34.000Z",
          "value": "VulDB entry last update"
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      "title": "D-Link DI-8100 HTTP auto_reboot.asp sprintf buffer overflow"
    }
  },
  "cveMetadata": {
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    "datePublished": "2026-05-05T17:45:14.044Z",
    "dateReserved": "2026-05-05T11:39:20.340Z",
    "dateUpdated": "2026-05-05T18:46:18.528Z",
    "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.

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.

Action not permitted

CNVD-2026-32591

CVE-2026-7853 (GCVE-0-2026-7853)

Tags

Sightings

Nomenclature