CVE-2026-5349 Details
Description
A vulnerability was identified in Trendnet TEW-657BRM 1.00.1. The affected element is the function add_apcdb of the file /setup.cgi. The manipulation of the argument mac_pc_dba leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit is publicly available and might be used. The vendor confirms, that "[t]he product in question (...) has been discontinued and end of life since June 23, 2011, that is more than 14 years ago. We no longer provide support for this product, so we are not able to confirm the vulnerabilities. We will make an announcement on our website's product support page and notify customers who registered their products with us." This vulnerability only affects products that are no longer supported by the maintainer.
A stack-based buffer overflow vulnerability has been identified in the Trendnet TEW-657BRM router, specifically in version 1.00.1. The issue arises in the add_apcdb function within the setup.cgi file, where the mac_pc_dba parameter is processed without proper validation, allowing for remote exploitation. This vulnerability is particularly concerning as the product has been discontinued and unsupported since 2011, leaving users without any official recourse.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Apr 2, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/panda666-888/vuls/blob/main/trendnet/tew-657brm/add_apcdb.md | [email protected] | ExploitThird Party Advisory |
| https://vuldb.com/submit/781563 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/vuln/354702 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/vuln/354702/cti | [email protected] | Permissions RequiredVDB Entry |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-119 | Improper Restriction of Operations within the Bounds of a Memory Buffer | [email protected] |
| CWE-121 | Stack-based Buffer Overflow | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| trendnet tew-657brm firmware | 1.00.1 |
CPE
Remediation
| |
| trendnet tew-657brm | All versions |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 24, 2026 | CVE Translated | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 7, 2026 | Initial Analysis | [email protected] |
| Apr 2, 2026 | New CVE Received | [email protected] |