CVE-2026-11524: Stack-based Buffer Overflow in Tenda W20E
CVE-2026-11524 is a high-severity stack-based buffer overflow vulnerability in the Tenda W20E router, specifically in version 15.11.0.6. The flaw exists in the Web Management Interface's modifyWifiFilterRules function, where improper handling of the wifiFilterListRemark argument can lead to memory corruption. This vulnerability can be exploited remotely without user interaction and requires low privileges. No official patch or remediation guidance has been provided yet.
AI Analysis
Technical Summary
The vulnerability CVE-2026-11524 affects Tenda W20E version 15.11.0.6. It is a stack-based buffer overflow in the modifyWifiFilterRules function of the Web Management Interface component. The issue arises from improper manipulation of the wifiFilterListRemark argument, allowing an attacker to overflow the stack. The attack vector is remote network access with low privileges and no user interaction needed. The vulnerability has a CVSS 4.0 base score of 8.7, indicating high severity. No official fix or patch has been disclosed, and no known exploits are reported in the wild.
Potential Impact
Successful exploitation of this vulnerability could lead to memory corruption on the device, potentially allowing an attacker to execute arbitrary code or cause a denial of service. The vulnerability is remotely exploitable with low privileges and no user interaction, increasing the risk of unauthorized control or disruption of the affected device's functionality.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict access to the device's Web Management Interface from untrusted networks to reduce exposure. Monitor vendor communications for updates on patches or mitigations.
CVE-2026-11524: Stack-based Buffer Overflow in Tenda W20E
Description
CVE-2026-11524 is a high-severity stack-based buffer overflow vulnerability in the Tenda W20E router, specifically in version 15.11.0.6. The flaw exists in the Web Management Interface's modifyWifiFilterRules function, where improper handling of the wifiFilterListRemark argument can lead to memory corruption. This vulnerability can be exploited remotely without user interaction and requires low privileges. No official patch or remediation guidance has been provided yet.
CVSS v4.0
Score 8.7high
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2026-11524 affects Tenda W20E version 15.11.0.6. It is a stack-based buffer overflow in the modifyWifiFilterRules function of the Web Management Interface component. The issue arises from improper manipulation of the wifiFilterListRemark argument, allowing an attacker to overflow the stack. The attack vector is remote network access with low privileges and no user interaction needed. The vulnerability has a CVSS 4.0 base score of 8.7, indicating high severity. No official fix or patch has been disclosed, and no known exploits are reported in the wild.
Potential Impact
Successful exploitation of this vulnerability could lead to memory corruption on the device, potentially allowing an attacker to execute arbitrary code or cause a denial of service. The vulnerability is remotely exploitable with low privileges and no user interaction, increasing the risk of unauthorized control or disruption of the affected device's functionality.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict access to the device's Web Management Interface from untrusted networks to reduce exposure. Monitor vendor communications for updates on patches or 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: 06/08/2026, 15:48:44 UTC
Last enriched: 06/16/2026, 08:32:06 UTC
Last updated: 07/31/2026, 19:22:57 UTC
Views: 45
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