Totolink N300RH POST Request cstecgi.cgi setMacFilterRules buffer overflow

{
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "cveMetadata": {
    "cveId": "CVE-2026-7750",
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "dateUpdated": "2026-05-04T09:00:17.932Z",
    "dateReserved": "2026-05-03T17:20:54.039Z",
    "datePublished": "2026-05-04T09:00:17.932Z",
    "state": "PUBLISHED"
  },
  "containers": {
    "cna": {
      "providerMetadata": {
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB",
        "dateUpdated": "2026-05-04T09:00:17.932Z"
      },
      "title": "Totolink N300RH POST Request cstecgi.cgi setMacFilterRules buffer overflow",
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability was detected in Totolink N300RH 3.2.4-B20220812. This vulnerability affects the function setMacFilterRules of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. The manipulation of the argument mac_address results in buffer overflow. The attack may be launched remotely. The exploit is now public and may be used."
        }
      ],
      "affected": [
        {
          "vendor": "Totolink",
          "product": "N300RH",
          "cpes": [
            "cpe:2.3:o:totolink:n300rh_firmware:*:*:*:*:*:*:*:*"
          ],
          "modules": [
            "POST Request Handler"
          ],
          "versions": [
            {
              "version": "3.2.4-B20220812",
              "status": "affected"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "lang": "en",
              "description": "Buffer Overflow",
              "cweId": "CWE-120",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "lang": "en",
              "description": "Memory Corruption",
              "cweId": "CWE-119",
              "type": "CWE"
            }
          ]
        }
      ],
      "references": [
        {
          "url": "https://vuldb.com/vuln/360925",
          "name": "VDB-360925 | Totolink N300RH POST Request cstecgi.cgi setMacFilterRules buffer overflow",
          "tags": [
            "vdb-entry",
            "technical-description"
          ]
        },
        {
          "url": "https://vuldb.com/vuln/360925/cti",
          "name": "VDB-360925 | CTI Indicators (IOB, IOC, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ]
        },
        {
          "url": "https://vuldb.com/submit/807204",
          "name": "Submit #807204 | Totolink N300RH N300RH V3_Firmware V3.2.4-B20220812 Buffer Overflow",
          "tags": [
            "third-party-advisory"
          ]
        },
        {
          "url": "https://lavender-bicycle-a5a.notion.site/TOTOLINK-N300RH-setMacFilterRules-34553a41781f809cb952cdcb71ce90d8",
          "tags": [
            "exploit"
          ]
        },
        {
          "url": "https://www.totolink.net/",
          "tags": [
            "product"
          ]
        }
      ],
      "metrics": [
        {},
        {
          "cvssV3_1": {
            "version": "3.1",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R",
            "baseScore": 8.8,
            "baseSeverity": "HIGH"
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            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R",
            "baseScore": 8.8,
            "baseSeverity": "HIGH"
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          "cvssV2_0": {
            "version": "2.0",
            "vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR",
            "baseScore": 9
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      "timeline": [
        {
          "time": "2026-05-03T00:00:00.000Z",
          "lang": "en",
          "value": "Advisory disclosed"
        },
        {
          "time": "2026-05-03T02:00:00.000Z",
          "lang": "en",
          "value": "VulDB entry created"
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        {
          "time": "2026-05-03T19:26:11.000Z",
          "lang": "en",
          "value": "VulDB entry last update"
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      ],
      "credits": [
        {
          "lang": "en",
          "value": "wxhwxhwxh_mie (VulDB User)",
          "type": "reporter"
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    }
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}