Wavlink WL-NU516U1 nas.cgi sub_401218 stack-based overflow

{
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "cveMetadata": {
    "cveId": "CVE-2026-2567",
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "dateUpdated": "2026-02-16T17:32:05.929Z",
    "dateReserved": "2026-02-15T19:40:10.069Z",
    "datePublished": "2026-02-16T17:32:05.929Z",
    "state": "PUBLISHED"
  },
  "containers": {
    "cna": {
      "providerMetadata": {
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB",
        "dateUpdated": "2026-02-16T17:32:05.929Z"
      },
      "title": "Wavlink WL-NU516U1 nas.cgi sub_401218 stack-based overflow",
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability was detected in Wavlink WL-NU516U1 20251208. This vulnerability affects the function sub_401218 of the file /cgi-bin/nas.cgi. Performing a manipulation of the argument User1Passwd results in stack-based buffer overflow. The attack may be initiated remotely. The exploit is now public and may be used."
        }
      ],
      "affected": [
        {
          "vendor": "Wavlink",
          "product": "WL-NU516U1",
          "versions": [
            {
              "version": "20251208",
              "status": "affected"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "lang": "en",
              "description": "Stack-based Buffer Overflow",
              "cweId": "CWE-121",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "lang": "en",
              "description": "Memory Corruption",
              "cweId": "CWE-119",
              "type": "CWE"
            }
          ]
        }
      ],
      "references": [
        {
          "url": "https://vuldb.com/?id.346174",
          "name": "VDB-346174 | Wavlink WL-NU516U1 nas.cgi sub_401218 stack-based overflow",
          "tags": [
            "vdb-entry",
            "technical-description"
          ]
        },
        {
          "url": "https://vuldb.com/?ctiid.346174",
          "name": "VDB-346174 | CTI Indicators (IOB, IOC, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ]
        },
        {
          "url": "https://vuldb.com/?submit.752016",
          "name": "Submit #752016 | Wavlink NU516U1  V251208 Stack-based Buffer Overflow",
          "tags": [
            "third-party-advisory"
          ]
        },
        {
          "url": "https://github.com/Wlz1112/Wavlink-NU516U1-V251208-/blob/main/nas.cgi_User1Passwd.md",
          "tags": [
            "exploit"
          ]
        }
      ],
      "metrics": [
        {},
        {
          "cvssV3_1": {
            "version": "3.1",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R",
            "baseScore": 7.2,
            "baseSeverity": "HIGH"
          }
        },
        {
          "cvssV3_0": {
            "version": "3.0",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R",
            "baseScore": 7.2,
            "baseSeverity": "HIGH"
          }
        },
        {
          "cvssV2_0": {
            "version": "2.0",
            "vectorString": "AV:N/AC:L/Au:M/C:C/I:C/A:C/E:POC/RL:ND/RC:UR",
            "baseScore": 8.3
          }
        }
      ],
      "timeline": [
        {
          "time": "2026-02-15T00:00:00.000Z",
          "lang": "en",
          "value": "Advisory disclosed"
        },
        {
          "time": "2026-02-15T01:00:00.000Z",
          "lang": "en",
          "value": "VulDB entry created"
        },
        {
          "time": "2026-02-15T20:45:18.000Z",
          "lang": "en",
          "value": "VulDB entry last update"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "haimianbaobao (VulDB User)",
          "type": "reporter"
        }
      ]
    }
  }
}