FKIE_CVE-2023-43239

Vulnerability from fkie_nvd - Published: 2023-09-21 13:15 - Updated: 2026-06-17 06:25
Severity
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.8 (High) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
D-Link DIR-816 A2 v1.10CNB05 was discovered to contain a stack overflow via parameter flag_5G in showMACfilterMAC.
References
cve@mitre.orghttps://github.com/peris-navince/founded-0-days/blob/main/Dlink/816/showMACfilterMAC/1.mdExploit, Third Party Advisory
cve@mitre.orghttps://www.dlink.com/en/security-bulletin/Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/peris-navince/founded-0-days/blob/main/Dlink/816/showMACfilterMAC/1.mdExploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.dlink.com/en/security-bulletin/Vendor Advisory
Impacted products
Vendor Product Version
dlink dir-816_a2_firmware 1.10cnb05
dlink dir-816_a2 -
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    },
    {
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:o:dlink:dir-816_a2_firmware:1.10cnb05:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unknown",
          "product": "dir-816_a2_firmware",
          "vendor": "dlink",
          "versions": [
            {
              "status": "affected",
              "version": "1.10cnb05"
            }
          ]
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:dlink:dir-816_a2_firmware:1.10cnb05:*:*:*:*:*:*:*",
              "matchCriteriaId": "122F83DD-6AD9-4DF1-BAD4-338FDCEC5C50",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
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              "matchCriteriaId": "DE0BF6D7-F3B3-4E25-807B-21055E5887CE",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "D-Link DIR-816 A2 v1.10CNB05 was discovered to contain a stack overflow via parameter flag_5G in showMACfilterMAC."
    },
    {
      "lang": "es",
      "value": "Se descubri\u00f3 que D-Link DIR-816 A2 v1.10CNB05 conten\u00eda un Desbordamiento del B\u00fafer a trav\u00e9s del par\u00e1metro flag_5G en showMACfilterMAC."
    }
  ],
  "id": "CVE-2023-43239",
  "lastModified": "2026-06-17T06:25:17.300",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
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        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
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          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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        "impactScore": 5.9,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
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        "ssvcData": {
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          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
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          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-09-24T15:11:45.981295Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2023-09-21T13:15:10.470",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://github.com/peris-navince/founded-0-days/blob/main/Dlink/816/showMACfilterMAC/1.md"
    },
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  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
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          "lang": "en",
          "value": "CWE-787"
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      "source": "nvd@nist.gov",
      "type": "Primary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-121"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}



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