CVE-2026-7029 Tenda CVE debrief

Who should care

Defenders managing Tenda F456 devices should assess exposure and verify if devices are running version 1.0.0.5. They should implement compensating controls and monitor for potential exploitation attempts.

Why it matters

CVE-2026-7029 is a buffer overflow vulnerability in Tenda F456 1.0.0.5 that can be exploited remotely. Defenders should assess exposure, verify device versions, and implement compensating controls.

• Verify if Tenda F456 devices are running version 1.0.0.5
• Assess exposure of Tenda F456 devices to potential buffer overflow attacks
• Implement compensating controls to mitigate potential attacks
• Monitor for potential exploitation attempts

Technical summary

The fromaddressNat function in the /goform/addressNat file of Tenda F456 1.0.0.5 is vulnerable to buffer overflow. This can be exploited remotely by manipulating the menufacturer/Go argument. The vulnerability has been made public and could be used for attacks. Defenders should assess exposure, verify device versions, and implement compensating controls. The CVE record and NVD detail page provide information on the vulnerability. Additional details are available from third-party advisories and VDB entries. The exploit has been made available to the public and could be used for attacks.

Defensive priority

High

Recommended defensive actions

• Assess exposure of Tenda F456 devices
• Verify if devices are running version 1.0.0.5
• Implement compensating controls to mitigate potential attacks
• Monitor for potential exploitation attempts
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The CVE record and NVD detail page provide information on the vulnerability. Additional details are available from third-party advisories and VDB entries. The vulnerability has been made public and could be used for attacks. Defenders should assess exposure, particularly those managing Tenda F456 devices. The exploit has been made available to the public and could be used for attacks. The CVE record was published on 2026-04-26T09:16:19.290Z and has not been modified since then.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.