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CVE-2026-91001

Status: DeferredHigh (8.6)—

A security flaw has been discovered in D-Link DI-8400 16.07. This affects the function ddns_asp of the file /ddns.asp of the component DDNS Configuration. Performing a manipulation of the argument serv/user/host/wild/mx/bmx/cust/ip results in stack-based buffer overflow. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

🎯 ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

Vector CVSS AV:N/PR:L sin UI:R indica acceso remoto con privilegios, y CWE-119/121 (buffer overflow en stack) permite ejecución de código. El texto menciona explotación pública y componente DDNS accesible, típico de T1210 en servicios remotos con autenticación previa.

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

🛡️ ATT&CK mitigations that cover these techniques

Threat Intelligence ProgramPrivileged Account ManagementExecution PreventionDisable or Remove Feature or ProgramApplication Isolation and SandboxingExploit Protection

Affected technologies (1)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

Dlink — Di-8400AI

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2026-91001",
  "cveTags": [],
  "metrics": {
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          "options": [
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          "timestamp": "2026-09-15T13:59:05.976699Z"
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    "cvssMetricV31": [
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    "cvssMetricV40": [
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          "Automatable": "NOT_DEFINED",
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          "valueDensity": "NOT_DEFINED",
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          "exploitMaturity": "PROOF_OF_CONCEPT",
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          "vulnerabilityResponseEffort": "NOT_DEFINED",
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          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
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  },
  "affected": [
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      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:h:d-link:di-8400:*:*:*:*:*:*:*:*"
          ],
          "vendor": "D-Link",
          "modules": [
            "DDNS Configuration"
          ],
          "product": "DI-8400",
          "versions": [
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              "version": "16.07"
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  "published": "2026-09-15T06:16:59.970",
  "references": [
    {
      "url": "https://github.com/Vivi-Xray/Xray-s-cve-/blob/main/ddns_asp/ddns_asp.py",
      "source": "cna@vuldb.com"
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      "url": "https://vuldb.com/cve/CVE-2026-91001",
      "source": "cna@vuldb.com"
    },
    {
      "url": "https://vuldb.com/submit/931642",
      "source": "cna@vuldb.com"
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    {
      "url": "https://vuldb.com/vuln/403582",
      "source": "cna@vuldb.com"
    },
    {
      "url": "https://vuldb.com/vuln/403582/cti",
      "source": "cna@vuldb.com"
    },
    {
      "url": "https://www.dlink.com/",
      "source": "cna@vuldb.com"
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  ],
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  "weaknesses": [
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      "type": "Secondary",
      "source": "cna@vuldb.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-119"
        },
        {
          "lang": "en",
          "value": "CWE-121"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A security flaw has been discovered in D-Link DI-8400 16.07. This affects the function ddns_asp of the file /ddns.asp of the component DDNS Configuration. Performing a manipulation of the argument serv/user/host/wild/mx/bmx/cust/ip results in stack-based buffer overflow. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks."
    }
  ],
  "lastModified": "2026-09-15T15:17:30.983",
  "sourceIdentifier": "cna@vuldb.com"
}