CVE-2026-11524: Stack-based Buffer Overflow in Tenda W20E
A vulnerability has been found in Tenda W20E 15.11.0.6. Impacted is the function modifyWifiFilterRules of the file /goform/modifyWifiFilterRules of the component Web Management Interface. The manipulation of the argument wifiFilterListRemark leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.
AI Analysis
Technical Summary
This vulnerability exists in the Tenda W20E router's Web Management Interface component, within the modifyWifiFilterRules function. By sending a specially crafted argument (wifiFilterListRemark), an attacker can cause a stack-based buffer overflow. The vulnerability is remotely exploitable without user interaction and requires low attack complexity and privileges. The CVSS 4.0 base score is 8.7, indicating high severity with high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation may allow remote attackers to execute arbitrary code on the affected device, potentially leading to full compromise of the router's functionality and network security. The vulnerability impacts confidentiality, integrity, and availability of the device. No evidence of active exploitation in the wild has been reported so far.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should consider limiting remote access to the Web Management Interface and monitor for unusual activity. Avoid exposing the management interface to untrusted networks. Follow vendor channels for updates on patches or official mitigations.
CVE-2026-11524: Stack-based Buffer Overflow in Tenda W20E
Description
A vulnerability has been found in Tenda W20E 15.11.0.6. Impacted is the function modifyWifiFilterRules of the file /goform/modifyWifiFilterRules of the component Web Management Interface. The manipulation of the argument wifiFilterListRemark leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.
CVSS v4.0
Score 8.7high
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability exists in the Tenda W20E router's Web Management Interface component, within the modifyWifiFilterRules function. By sending a specially crafted argument (wifiFilterListRemark), an attacker can cause a stack-based buffer overflow. The vulnerability is remotely exploitable without user interaction and requires low attack complexity and privileges. The CVSS 4.0 base score is 8.7, indicating high severity with high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation may allow remote attackers to execute arbitrary code on the affected device, potentially leading to full compromise of the router's functionality and network security. The vulnerability impacts confidentiality, integrity, and availability of the device. No evidence of active exploitation in the wild has been reported so far.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should consider limiting remote access to the Web Management Interface and monitor for unusual activity. Avoid exposing the management interface to untrusted networks. Follow vendor channels for updates on patches or official mitigations.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-06-07T16:07:35.577Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a26e45ce29bf47b501dd8f3
Added to database: 6/8/2026, 3:48:44 PM
Last enriched: 6/8/2026, 4:18:31 PM
Last updated: 6/9/2026, 4:43:42 AM
Views: 4
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