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 formwebtypelibrary function of the /goform/webtypelibrary file. The vulnerability is triggered by manipulating the menufacturer/Go argument remotely without user interaction or elevated 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 by the vendor as of the publication date.
AI Analysis
Technical Summary
This vulnerability affects Tenda F456 firmware version 1.0.0.5 and involves a stack-based buffer overflow in the formwebtypelibrary function within the /goform/webtypelibrary endpoint. An attacker can remotely trigger this overflow by sending a specially crafted request manipulating the menufacturer/Go argument. The vulnerability has a CVSS 4.0 base score of 8.7, indicating high severity with network attack vector, low attack complexity, no privileges required, no user interaction, and high impacts on confidentiality, integrity, and availability. No official patch or remediation level has been disclosed by the vendor.
Potential Impact
Successful exploitation of this vulnerability could allow a remote attacker to cause a stack-based buffer overflow, potentially leading to arbitrary code execution or denial of service on the affected device. The high CVSS score reflects significant impacts on confidentiality, integrity, and availability. However, there are currently no known exploits observed in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or temporary mitigation has been published, users should monitor Tenda's official channels for updates. Until a patch is available, restricting network access to the affected device and disabling remote management features, if possible, may reduce exposure.
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 formwebtypelibrary function of the /goform/webtypelibrary file. The vulnerability is triggered by manipulating the menufacturer/Go argument remotely without user interaction or elevated 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 by the vendor as of the publication date.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability affects Tenda F456 firmware version 1.0.0.5 and involves a stack-based buffer overflow in the formwebtypelibrary function within the /goform/webtypelibrary endpoint. An attacker can remotely trigger this overflow by sending a specially crafted request manipulating the menufacturer/Go argument. The vulnerability has a CVSS 4.0 base score of 8.7, indicating high severity with network attack vector, low attack complexity, no privileges required, no user interaction, and high impacts on confidentiality, integrity, and availability. No official patch or remediation level has been disclosed by the vendor.
Potential Impact
Successful exploitation of this vulnerability could allow a remote attacker to cause a stack-based buffer overflow, potentially leading to arbitrary code execution or denial of service on the affected device. The high CVSS score reflects significant impacts on confidentiality, integrity, and availability. However, there are currently no known exploits observed in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or temporary mitigation has been published, users should monitor Tenda's official channels for updates. Until a patch is available, restricting network access to the affected device and disabling remote management features, if possible, may reduce exposure.
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: 4/13/2026, 7:16:50 PM
Last updated: 4/13/2026, 8:04:47 PM
Views: 4
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.