CVE-2026-129351 (GCVE-0-2026-129351)

Vulnerability from cvelistv5 – Published: 2026-11-14 22:30 – Updated: 2026-11-14 22:30 Unsupported When Assigned
VLAI
Title
TRENDnet TEW-657BRM mini_httpd setup.cgi sprintf out-of-bounds write
Summary
A security vulnerability has been detected in TRENDnet TEW-657BRM 1.00.1. This vulnerability affects the function sprintf of the file /setup.cgi of the component mini_httpd. Such manipulation leads to out-of-bounds write. The attack can be executed remotely. The exploit has been disclosed publicly and may be used. The vendor explains: ""I am not able to confirm if such vulnerability exists as the product has been EOL for more than 15 years. We will send out an announcement letting customers know." This vulnerability only affects products that are no longer supported by the maintainer.
Severity
10 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
10 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
10 (Critical)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
CWE
Assigner
VulDB CNA under the mitre root
CNA scorecard B 83/100 over 3841 records in the last 180 days details
References
URL Tags
https://vuldb.com/vuln/437397 vdb-entrytechnical-description
https://vuldb.com/vuln/437397/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-129351 third-party-advisory
https://vuldb.com/submit/1043518 third-party-advisory
https://github.com/ruanyi101/router-firmware-secu… exploit
Impacted products
Vendor Product Version CPE status
TRENDnet TEW-657BRM Affected: 1.00.1
    cpe:2.3:o:trendnet:tew-657brm_firmware:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
ruanyi (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:o:trendnet:tew-657brm_firmware:*:*:*:*:*:*:*:*"
          ],
          "modules": [
            "mini_httpd"
          ],
          "product": "TEW-657BRM",
          "vendor": "TRENDnet",
          "versions": [
            {
              "status": "affected",
              "version": "1.00.1"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "ruanyi (VulDB User)"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "VulDB CNA Team"
        }
      ],
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        }
      ],
      "metrics": [
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            "baseSeverity": "CRITICAL",
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        },
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          "tags": [
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        },
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          "name": "CVE-2026-129351 | CVE Analysis and Report",
          "tags": [
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          "url": "https://vuldb.com/cve/CVE-2026-129351"
        },
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        },
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          "url": "https://github.com/ruanyi101/router-firmware-security-advisories/blob/main/router-firmware-GitHub-advisories/advisories/TRENDnet-TEW-657BRM-mini_httpd.md"
        }
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          "time": "2026-11-14T07:36:35.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "TRENDnet TEW-657BRM mini_httpd setup.cgi sprintf out-of-bounds write",
      "x_generator": [
        "VulDB PVTS v202611"
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2026-129351",
    "datePublished": "2026-11-14T22:30:23.821Z",
    "dateReserved": "2026-11-14T06:31:24.764Z",
    "dateUpdated": "2026-11-14T22:30:23.821Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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                  "cpe:2.3:o:trendnet:tew-657brm_firmware:*:*:*:*:*:*:*:*"
                ],
                "modules": [
                  "mini_httpd"
                ],
                "product": "TEW-657BRM",
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        "cveTags": [
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        ],
        "descriptions": [
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            "lang": "en",
            "value": "A security vulnerability has been detected in TRENDnet TEW-657BRM 1.00.1. This vulnerability affects the function sprintf of the file /setup.cgi of the component mini_httpd. Such manipulation leads to out-of-bounds write. The attack can be executed remotely. The exploit has been disclosed publicly and may be used. The vendor explains: \"\"I am not able to confirm if such vulnerability exists as the product has been EOL for more than 15 years. We will send out an announcement letting customers know.\" This vulnerability only affects products that are no longer supported by the maintainer."
          }
        ],
        "id": "CVE-2026-129351",
        "lastModified": "2026-11-14T23:16:47.983",
        "metrics": {
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              "acInsufInfo": false,
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                "modifiedAttackRequirements": "NOT_DEFINED",
                "modifiedAttackVector": "NOT_DEFINED",
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                "modifiedSubAvailabilityImpact": "NOT_DEFINED",
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  }
}



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