A vulnerability was detected in TRENDnet TEW-657BRM 1.00.1. This issue affects some unknown processing of the file /usr/sbin/upgrade_flash.cgi. Performing a manipulation of the argument boundary results in stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit is now public 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."
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Sat, 14 Nov 2026 23:15:00 +0000

Type Values Removed Values Added
Description A vulnerability was detected in TRENDnet TEW-657BRM 1.00.1. This issue affects some unknown processing of the file /usr/sbin/upgrade_flash.cgi. Performing a manipulation of the argument boundary results in stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit is now public 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."
Title TRENDnet TEW-657BRM upgrade_flash.cgi stack-based overflow
First Time appeared Trendnet
Trendnet tew-657brm Firmware
Weaknesses CWE-119
CWE-121
CPEs cpe:2.3:o:trendnet:tew-657brm_firmware:*:*:*:*:*:*:*:*
Vendors & Products Trendnet
Trendnet tew-657brm Firmware
References
Metrics cvssV2_0

{'score': 8.3, 'vector': 'AV:N/AC:L/Au:M/C:C/I:C/A:C/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 9.1, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 9.4, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-11-14T23:00:27.224Z

Reserved: 2026-11-14T06:31:28.857Z

Link: CVE-2026-129352

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2026-11-14T23:16:48.033

Modified: 2026-11-14T23:16:48.177

Link: CVE-2026-129352

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses