CVE-2026-10158: Stack-based Buffer Overflow in TRENDnet TEW-432BRP
CVE-2026-10158 is a high-severity stack-based buffer overflow vulnerability in the TRENDnet TEW-432BRP router firmware version 3. 10B20. The flaw exists in the formPortFw function, where manipulation of the server_name argument can trigger the overflow. This vulnerability can be exploited remotely without user interaction. The affected product has been end-of-life (EOL) since 2009, and the vendor has stated they will not provide a fix or replicate the issue due to the product's age and lack of support.
AI Analysis
Technical Summary
This vulnerability involves a stack-based buffer overflow in the formPortFw function of the TRENDnet TEW-432BRP router firmware 3.10B20. An attacker can remotely manipulate the server_name parameter to cause the overflow, potentially leading to code execution or denial of service. The product is no longer supported by the vendor, who has explicitly stated they will not issue a patch or mitigation. The CVSS 4.0 score is 8.7, reflecting high impact with network attack vector, low attack complexity, no privileges or user interaction required, and high impacts on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation can lead to remote code execution or denial of service on the affected device. Since the device is a network router, compromise could allow attackers to control network traffic or disrupt connectivity. However, the product is EOL and no official fixes or mitigations are provided by the vendor.
Mitigation Recommendations
No official patch or fix is available due to the product being end-of-life for over 15 years. Users should consider replacing the affected TRENDnet TEW-432BRP device with a supported model. Network-level protections such as firewall rules to restrict access to the device's management interface may reduce exposure. Patch status is not applicable as the vendor will not provide a fix.
CVE-2026-10158: Stack-based Buffer Overflow in TRENDnet TEW-432BRP
Description
CVE-2026-10158 is a high-severity stack-based buffer overflow vulnerability in the TRENDnet TEW-432BRP router firmware version 3. 10B20. The flaw exists in the formPortFw function, where manipulation of the server_name argument can trigger the overflow. This vulnerability can be exploited remotely without user interaction. The affected product has been end-of-life (EOL) since 2009, and the vendor has stated they will not provide a fix or replicate the issue due to the product's age and lack of support.
CVSS v4.0
Score 8.7high
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a stack-based buffer overflow in the formPortFw function of the TRENDnet TEW-432BRP router firmware 3.10B20. An attacker can remotely manipulate the server_name parameter to cause the overflow, potentially leading to code execution or denial of service. The product is no longer supported by the vendor, who has explicitly stated they will not issue a patch or mitigation. The CVSS 4.0 score is 8.7, reflecting high impact with network attack vector, low attack complexity, no privileges or user interaction required, and high impacts on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation can lead to remote code execution or denial of service on the affected device. Since the device is a network router, compromise could allow attackers to control network traffic or disrupt connectivity. However, the product is EOL and no official fixes or mitigations are provided by the vendor.
Mitigation Recommendations
No official patch or fix is available due to the product being end-of-life for over 15 years. Users should consider replacing the affected TRENDnet TEW-432BRP device with a supported model. Network-level protections such as firewall rules to restrict access to the device's management interface may reduce exposure. Patch status is not applicable as the vendor will not provide a fix.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-05-30T07:00:24.047Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a1b8fede29bf47b50aef099
Added to database: 5/31/2026, 1:33:33 AM
Last enriched: 5/31/2026, 1:48:30 AM
Last updated: 5/31/2026, 2:34:31 AM
Views: 6
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