CVE-2026-5604: Stack-based Buffer Overflow in Tenda CH22
CVE-2026-5604 is a high-severity stack-based buffer overflow vulnerability in Tenda CH22 version 1. 0. 0. 1. The flaw exists in the function formCertLocalPrecreate within the /goform/CertLocalPrecreate component's Parameter Handler. It can be triggered remotely by manipulating the argument 'standard', potentially allowing an attacker to execute arbitrary code or cause a denial of service. Although an exploit has been publicly released, there is no confirmed patch or official remediation available at this time.
AI Analysis
Technical Summary
This vulnerability involves a stack-based buffer overflow in the Tenda CH22 1.0.0.1 device, specifically in the formCertLocalPrecreate function of the /goform/CertLocalPrecreate parameter handler. Remote attackers can exploit this by manipulating the 'standard' argument, leading to memory corruption. The CVSS 4.0 base score is 8.7, indicating a high risk with network attack vector, low attack complexity, no privileges or user interaction required, and high impact on confidentiality, integrity, and availability. No vendor advisory or patch information is currently available, and the device is not a cloud service, so remediation depends on vendor action.
Potential Impact
Successful exploitation can lead to remote code execution or denial of service on affected Tenda CH22 devices running version 1.0.0.1. The vulnerability impacts confidentiality, integrity, and availability of the device. Public exploit code is available, increasing the risk of active attacks. There is no indication that this vulnerability is currently exploited in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, consider limiting network exposure of affected devices and applying network-level protections to reduce attack surface. Monitor vendor channels for updates and apply patches promptly once available.
CVE-2026-5604: Stack-based Buffer Overflow in Tenda CH22
Description
CVE-2026-5604 is a high-severity stack-based buffer overflow vulnerability in Tenda CH22 version 1. 0. 0. 1. The flaw exists in the function formCertLocalPrecreate within the /goform/CertLocalPrecreate component's Parameter Handler. It can be triggered remotely by manipulating the argument 'standard', potentially allowing an attacker to execute arbitrary code or cause a denial of service. Although an exploit has been publicly released, there is no confirmed patch or official remediation available at this time.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a stack-based buffer overflow in the Tenda CH22 1.0.0.1 device, specifically in the formCertLocalPrecreate function of the /goform/CertLocalPrecreate parameter handler. Remote attackers can exploit this by manipulating the 'standard' argument, leading to memory corruption. The CVSS 4.0 base score is 8.7, indicating a high risk with network attack vector, low attack complexity, no privileges or user interaction required, and high impact on confidentiality, integrity, and availability. No vendor advisory or patch information is currently available, and the device is not a cloud service, so remediation depends on vendor action.
Potential Impact
Successful exploitation can lead to remote code execution or denial of service on affected Tenda CH22 devices running version 1.0.0.1. The vulnerability impacts confidentiality, integrity, and availability of the device. Public exploit code is available, increasing the risk of active attacks. There is no indication that this vulnerability is currently exploited in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, consider limiting network exposure of affected devices and applying network-level protections to reduce attack surface. Monitor vendor channels for updates and apply patches promptly once available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-04-05T13:59:53.852Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69d2e98e0a160ebd921dd793
Added to database: 4/5/2026, 11:00:30 PM
Last enriched: 4/13/2026, 3:09:12 PM
Last updated: 5/21/2026, 11:52:04 AM
Views: 70
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