CVE-2026-6136: Stack-based Buffer Overflow in Tenda F451
CVE-2026-6136 is a high-severity stack-based buffer overflow vulnerability in the Tenda F451 router firmware version 1. 0. 0. 7_cn_svn7958. The flaw exists in the function frmL7ImForm within the /goform/L7Im file, where improper handling of the 'page' argument allows remote attackers to cause a buffer overflow. This vulnerability can be exploited remotely without user interaction and requires low attack complexity and privileges. Although the exploit code has been publicly disclosed, there are no confirmed reports of exploitation in the wild. No official patch or remediation guidance has been provided by the vendor as of the publication date.
AI Analysis
Technical Summary
The Tenda F451 router firmware version 1.0.0.7_cn_svn7958 contains a stack-based buffer overflow vulnerability identified as CVE-2026-6136. The vulnerability arises from improper validation of the 'page' argument in the frmL7ImForm function located in the /goform/L7Im file. This flaw allows remote attackers to overflow the stack buffer, potentially leading to arbitrary code execution or denial of service. The vulnerability is remotely exploitable without user interaction, with low attack complexity and privileges required. The CVSS 4.0 base score is 8.7, indicating high severity. As of the latest information, no official patch or mitigation has been released by Tenda.
Potential Impact
Successful exploitation of this vulnerability could allow remote attackers to execute arbitrary code or cause a denial of service on affected Tenda F451 devices. The vulnerability requires no user interaction and can be triggered remotely, increasing its risk. However, there are no confirmed reports of active exploitation in the wild. The high CVSS score reflects the significant potential impact on device integrity and availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should consider limiting network exposure of the affected device, such as restricting remote management access or isolating the device from untrusted networks. Monitor vendor channels for updates regarding patches or official mitigations.
CVE-2026-6136: Stack-based Buffer Overflow in Tenda F451
Description
CVE-2026-6136 is a high-severity stack-based buffer overflow vulnerability in the Tenda F451 router firmware version 1. 0. 0. 7_cn_svn7958. The flaw exists in the function frmL7ImForm within the /goform/L7Im file, where improper handling of the 'page' argument allows remote attackers to cause a buffer overflow. This vulnerability can be exploited remotely without user interaction and requires low attack complexity and privileges. Although the exploit code has been publicly disclosed, there are no confirmed reports of exploitation in the wild. 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
The Tenda F451 router firmware version 1.0.0.7_cn_svn7958 contains a stack-based buffer overflow vulnerability identified as CVE-2026-6136. The vulnerability arises from improper validation of the 'page' argument in the frmL7ImForm function located in the /goform/L7Im file. This flaw allows remote attackers to overflow the stack buffer, potentially leading to arbitrary code execution or denial of service. The vulnerability is remotely exploitable without user interaction, with low attack complexity and privileges required. The CVSS 4.0 base score is 8.7, indicating high severity. As of the latest information, no official patch or mitigation has been released by Tenda.
Potential Impact
Successful exploitation of this vulnerability could allow remote attackers to execute arbitrary code or cause a denial of service on affected Tenda F451 devices. The vulnerability requires no user interaction and can be triggered remotely, increasing its risk. However, there are no confirmed reports of active exploitation in the wild. The high CVSS score reflects the significant potential impact on device integrity and availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should consider limiting network exposure of the affected device, such as restricting remote management access or isolating the device from untrusted networks. Monitor vendor channels for updates regarding patches or official mitigations.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-04-12T07:22:47.230Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69dc2f0082d89c981f6be0d0
Added to database: 4/12/2026, 11:47:12 PM
Last enriched: 4/13/2026, 12:01:48 AM
Last updated: 4/13/2026, 1:25:27 AM
Views: 4
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