CVE-2026-10121: Stack-based Buffer Overflow in TRENDnet TEW-432BRP
A flaw has been found in TRENDnet TEW-432BRP 3.10B20. The impacted element is the function formSetUrlFilter of the file /goform/formSetUrlFilter. This manipulation of the argument keyword_list/keyword causes stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been published and may be used. The vendor explains: "This product has been EOL for 15 years (since 2009). As the item has been EOL for such a long time, we are not able to replicate or fix any vulnerabilities." This vulnerability only affects products that are no longer supported by the maintainer.
AI Analysis
Technical Summary
This vulnerability affects the TRENDnet TEW-432BRP router running firmware 3.10B20. The issue is a stack-based buffer overflow triggered by specially crafted input to the formSetUrlFilter function's keyword_list parameter. The overflow can be exploited remotely, potentially allowing an attacker to execute arbitrary code or cause denial of service. The vendor has confirmed the product is EOL for over 15 years and does not plan to issue any fixes or patches. No official remediation or workaround is provided by the vendor.
Potential Impact
Successful exploitation of this vulnerability could allow a remote attacker to execute arbitrary code or cause a denial of service on the affected device. Given the high CVSS score (8.7) and the nature of the buffer overflow, the impact is significant. However, the affected product is no longer supported, which means no vendor-provided fixes or mitigations are available, increasing the risk for users still operating this device.
Mitigation Recommendations
The vendor has stated that the product is end-of-life and no fixes or patches will be provided. Therefore, the recommended mitigation is to discontinue use of the affected TRENDnet TEW-432BRP device and replace it with a supported model that receives security updates. Network segmentation or isolating the device from untrusted networks may reduce exposure but does not eliminate the vulnerability.
CVE-2026-10121: Stack-based Buffer Overflow in TRENDnet TEW-432BRP
Description
A flaw has been found in TRENDnet TEW-432BRP 3.10B20. The impacted element is the function formSetUrlFilter of the file /goform/formSetUrlFilter. This manipulation of the argument keyword_list/keyword causes stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been published and may be used. The vendor explains: "This product has been EOL for 15 years (since 2009). As the item has been EOL for such a long time, we are not able to replicate or fix any vulnerabilities." This vulnerability only affects products that are no longer supported by the maintainer.
CVSS v4.0
Score 8.7high
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability affects the TRENDnet TEW-432BRP router running firmware 3.10B20. The issue is a stack-based buffer overflow triggered by specially crafted input to the formSetUrlFilter function's keyword_list parameter. The overflow can be exploited remotely, potentially allowing an attacker to execute arbitrary code or cause denial of service. The vendor has confirmed the product is EOL for over 15 years and does not plan to issue any fixes or patches. No official remediation or workaround is provided by the vendor.
Potential Impact
Successful exploitation of this vulnerability could allow a remote attacker to execute arbitrary code or cause a denial of service on the affected device. Given the high CVSS score (8.7) and the nature of the buffer overflow, the impact is significant. However, the affected product is no longer supported, which means no vendor-provided fixes or mitigations are available, increasing the risk for users still operating this device.
Mitigation Recommendations
The vendor has stated that the product is end-of-life and no fixes or patches will be provided. Therefore, the recommended mitigation is to discontinue use of the affected TRENDnet TEW-432BRP device and replace it with a supported model that receives security updates. Network segmentation or isolating the device from untrusted networks may reduce exposure but does not eliminate the vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-05-29T17:19:24.327Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a1affcce29bf47b503eb45e
Added to database: 05/30/2026, 15:18:36 UTC
Last enriched: 06/06/2026, 20:48:48 UTC
Last updated: 07/31/2026, 19:22:57 UTC
Views: 84
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