{
  "containers": {
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      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-47854",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-22T15:11:46.923237Z",
                "version": "2.0.3"
              },
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        "providerMetadata": {
          "dateUpdated": "2026-01-22T15:11:53.533Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
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      "affected": [
        {
          "product": "DD-WRT",
          "vendor": "embeDD GmbH",
          "versions": [
            {
              "status": "affected",
              "version": "45723"
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      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Selim Enes \u0027Enesdex\u0027 Karaduman"
        }
      ],
      "datePublic": "2021-03-24T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "DD-WRT version 45723 contains a buffer overflow vulnerability in the UPNP network discovery service that allows remote attackers to potentially execute arbitrary code. Attackers can send crafted M-SEARCH packets with oversized UUID payloads to trigger buffer overflow conditions on the target device."
        }
      ],
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            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
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            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8.7,
            "baseSeverity": "HIGH",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
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            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
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            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
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      "problemTypes": [
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          "descriptions": [
            {
              "cweId": "CWE-120",
              "description": "Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)",
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              "type": "CWE"
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      "providerMetadata": {
        "dateUpdated": "2026-01-21T17:27:38.228Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
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        {
          "name": "ExploitDB-49730",
          "tags": [
            "exploit"
          ],
          "url": "https://www.exploit-db.com/exploits/49730"
        },
        {
          "name": "DD-WRT Official Vendor Homepage",
          "tags": [
            "product"
          ],
          "url": "https://dd-wrt.com/"
        },
        {
          "name": "DD-WRT Software Download Repository",
          "tags": [
            "product"
          ],
          "url": "https://download1.dd-wrt.com/dd-wrtv2/downloads/betas/2021/"
        },
        {
          "name": "SSD Security Advisory for DD-WRT UPNP Buffer Overflow",
          "tags": [
            "technical-description"
          ],
          "url": "https://ssd-disclosure.com/ssd-advisory-dd-wrt-upnp-buffer-overflow/"
        },
        {
          "name": "VulnCheck Advisory: DD-WRT 45723 - UPNP Buffer Overflow",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/dd-wrt-upnp-buffer-overflow"
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      ],
      "title": "DD-WRT 45723 - UPNP Buffer Overflow",
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        "engine": "vulncheck"
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  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2021-47854",
    "datePublished": "2026-01-21T17:27:38.228Z",
    "dateReserved": "2026-01-14T17:11:19.903Z",
    "dateUpdated": "2026-01-22T15:11:53.533Z",
    "state": "PUBLISHED"
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}