Tenda A21 SetOnlineDevName set_device_name stack-based overflow

{
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "cveMetadata": {
    "cveId": "CVE-2026-2886",
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "dateUpdated": "2026-02-21T21:02:11.930Z",
    "dateReserved": "2026-02-20T17:04:45.674Z",
    "datePublished": "2026-02-21T21:02:11.930Z",
    "state": "PUBLISHED"
  },
  "containers": {
    "cna": {
      "providerMetadata": {
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB",
        "dateUpdated": "2026-02-21T21:02:11.930Z"
      },
      "title": "Tenda A21 SetOnlineDevName set_device_name stack-based overflow",
      "descriptions": [
        {
          "lang": "en",
          "value": "A weakness has been identified in Tenda A21 1.0.0.0. This affects the function set_device_name of the file /goform/SetOnlineDevName. This manipulation of the argument devName causes stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks."
        }
      ],
      "affected": [
        {
          "vendor": "Tenda",
          "product": "A21",
          "versions": [
            {
              "version": "1.0.0.0",
              "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.347180",
          "name": "VDB-347180 | Tenda A21 SetOnlineDevName set_device_name stack-based overflow",
          "tags": [
            "vdb-entry",
            "technical-description"
          ]
        },
        {
          "url": "https://vuldb.com/?ctiid.347180",
          "name": "VDB-347180 | CTI Indicators (IOB, IOC, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ]
        },
        {
          "url": "https://vuldb.com/?submit.754640",
          "name": "Submit #754640 | Tenda A21 V1.0.0.0 Stack-based Buffer Overflow",
          "tags": [
            "third-party-advisory"
          ]
        },
        {
          "url": "https://github.com/QIU-DIE/cve-nneeww/issues/6",
          "tags": [
            "exploit",
            "issue-tracking"
          ]
        },
        {
          "url": "https://www.tenda.com.cn/",
          "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"
          }
        },
        {
          "cvssV3_0": {
            "version": "3.0",
            "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"
          }
        },
        {
          "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
          }
        }
      ],
      "timeline": [
        {
          "time": "2026-02-20T00:00:00.000Z",
          "lang": "en",
          "value": "Advisory disclosed"
        },
        {
          "time": "2026-02-20T01:00:00.000Z",
          "lang": "en",
          "value": "VulDB entry created"
        },
        {
          "time": "2026-02-20T18:09:49.000Z",
          "lang": "en",
          "value": "VulDB entry last update"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "hhsw34 (VulDB User)",
          "type": "reporter"
        }
      ]
    }
  }
}