CVE-2026-6200: Stack-based Buffer Overflow in Tenda F456
CVE-2026-6200 is a high-severity stack-based buffer overflow vulnerability in Tenda F456 version 1. 0. 0. 5. It exists in the function formwebtypelibrary within the /goform/webtypelibrary file, triggered by manipulating the menufacturer/Go argument. The vulnerability can be exploited remotely without user interaction or privileges. Although the exploit has been publicly disclosed, there are no known exploits in the wild and no official patch or remediation guidance has been provided yet.
AI Analysis
Technical Summary
This vulnerability affects Tenda F456 firmware version 1.0.0.5. The flaw is a stack-based buffer overflow in the formwebtypelibrary function of the /goform/webtypelibrary endpoint. An attacker can remotely trigger this by sending a crafted request manipulating the menufacturer/Go parameter, causing memory corruption. The CVSS 4.0 base score is 8.7, indicating high severity, with network attack vector, low attack complexity, no privileges or user interaction required, and high impact on confidentiality, integrity, and availability. No official patch or vendor advisory is currently available.
Potential Impact
Successful exploitation can lead to remote code execution or denial of service due to stack-based buffer overflow, compromising the affected device's confidentiality, integrity, and availability. The vulnerability is remotely exploitable without authentication or user interaction, increasing its risk. However, there are no confirmed reports of exploitation in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict network access to the affected device's management interface to trusted sources only and monitor for suspicious activity targeting the /goform/webtypelibrary endpoint. Avoid exposing the device management interface to untrusted networks.
CVE-2026-6200: Stack-based Buffer Overflow in Tenda F456
Description
CVE-2026-6200 is a high-severity stack-based buffer overflow vulnerability in Tenda F456 version 1. 0. 0. 5. It exists in the function formwebtypelibrary within the /goform/webtypelibrary file, triggered by manipulating the menufacturer/Go argument. The vulnerability can be exploited remotely without user interaction or privileges. Although the exploit has been publicly disclosed, there are no known exploits in the wild and no official patch or remediation guidance has been provided yet.
CVSS v4.0
Score 8.7high
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability affects Tenda F456 firmware version 1.0.0.5. The flaw is a stack-based buffer overflow in the formwebtypelibrary function of the /goform/webtypelibrary endpoint. An attacker can remotely trigger this by sending a crafted request manipulating the menufacturer/Go parameter, causing memory corruption. The CVSS 4.0 base score is 8.7, indicating high severity, with network attack vector, low attack complexity, no privileges or user interaction required, and high impact on confidentiality, integrity, and availability. No official patch or vendor advisory is currently available.
Potential Impact
Successful exploitation can lead to remote code execution or denial of service due to stack-based buffer overflow, compromising the affected device's confidentiality, integrity, and availability. The vulnerability is remotely exploitable without authentication or user interaction, increasing its risk. However, there are no confirmed reports of exploitation in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict network access to the affected device's management interface to trusted sources only and monitor for suspicious activity targeting the /goform/webtypelibrary endpoint. Avoid exposing the device management interface to untrusted networks.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-04-13T08:48:18.635Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69dd3da482d89c981f3fccd1
Added to database: 4/13/2026, 7:01:56 PM
Last enriched: 4/21/2026, 6:27:41 AM
Last updated: 5/29/2026, 1:02:09 PM
Views: 92
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