CVE-2026-10123: Stack-based Buffer Overflow in TRENDnet TEW-432BRP
CVE-2026-10123 is a high-severity stack-based buffer overflow vulnerability in the TRENDnet TEW-432BRP router firmware version 3. 10B20. The flaw exists in the formSetDomainFilter function, where manipulation of certain domain filter arguments can cause a buffer overflow. This vulnerability can be exploited remotely without user interaction. However, 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. No official patch or mitigation is available from the vendor.
AI Analysis
Technical Summary
This vulnerability affects the TRENDnet TEW-432BRP router firmware 3.10B20 in the formSetDomainFilter function. By manipulating the blocked_domain, permitted_domain, blocked_domain_list, or permitted_domain_list parameters, an attacker can trigger a stack-based buffer overflow remotely. The vulnerability has a CVSS 4.0 score of 8.7, indicating high severity with network attack vector and no required privileges or user interaction. The product is no longer supported, and the vendor has explicitly stated no fix will be provided due to the product's EOL status.
Potential Impact
Successful exploitation of this vulnerability could allow remote attackers to cause a stack-based buffer overflow, potentially leading to denial of service or arbitrary code execution on the affected device. Given the high CVSS score and remote attack vector, the impact on affected devices is significant. However, since the product is EOL and likely not widely used in current environments, the practical risk may be limited to legacy deployments.
Mitigation Recommendations
No official fix or patch is available because the product has been end-of-life since 2009 and the vendor does not support it anymore. Users should consider replacing the affected TRENDnet TEW-432BRP devices with supported hardware to mitigate this vulnerability. There are no vendor-provided temporary mitigations or workarounds documented.
CVE-2026-10123: Stack-based Buffer Overflow in TRENDnet TEW-432BRP
Description
CVE-2026-10123 is a high-severity stack-based buffer overflow vulnerability in the TRENDnet TEW-432BRP router firmware version 3. 10B20. The flaw exists in the formSetDomainFilter function, where manipulation of certain domain filter arguments can cause a buffer overflow. This vulnerability can be exploited remotely without user interaction. However, 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. No official patch or mitigation is available from the vendor.
CVSS v4.0
Score 8.7high
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability affects the TRENDnet TEW-432BRP router firmware 3.10B20 in the formSetDomainFilter function. By manipulating the blocked_domain, permitted_domain, blocked_domain_list, or permitted_domain_list parameters, an attacker can trigger a stack-based buffer overflow remotely. The vulnerability has a CVSS 4.0 score of 8.7, indicating high severity with network attack vector and no required privileges or user interaction. The product is no longer supported, and the vendor has explicitly stated no fix will be provided due to the product's EOL status.
Potential Impact
Successful exploitation of this vulnerability could allow remote attackers to cause a stack-based buffer overflow, potentially leading to denial of service or arbitrary code execution on the affected device. Given the high CVSS score and remote attack vector, the impact on affected devices is significant. However, since the product is EOL and likely not widely used in current environments, the practical risk may be limited to legacy deployments.
Mitigation Recommendations
No official fix or patch is available because the product has been end-of-life since 2009 and the vendor does not support it anymore. Users should consider replacing the affected TRENDnet TEW-432BRP devices with supported hardware to mitigate this vulnerability. There are no vendor-provided temporary mitigations or workarounds documented.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-05-29T17:19:29.210Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a1b06d4e29bf47b50425a3d
Added to database: 5/30/2026, 3:48:36 PM
Last enriched: 5/30/2026, 4:03:37 PM
Last updated: 5/30/2026, 4:56:53 PM
Views: 5
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