CVE-2026-6120 Tenda CVE debrief

Who should care

Defenders responsible for Tenda F451 devices, network administrators, and security teams should assess exposure and potential exploitation attempts. They should prioritize verifying the exposure of Tenda F451 devices running firmware version 1.0.0.7 and assessing the network for potential exploitation attempts. Implementing compensating controls and reviewing relevant monitoring, detection, and logs are also crucial steps.

Why it matters

The CVE-2026-6120 vulnerability in Tenda F451 1.0.0.7 poses a risk to network security, with potential for remote exploitation. Defenders should prioritize verifying exposure and assessing network security.

• Verify exposure of Tenda F451 devices running firmware version 1.0.0.7.
• Assess network for potential exploitation attempts.
• Implement compensating controls to mitigate potential exploitation.

Technical summary

The vulnerability exists in the fromDhcpListClient function of the /goform/DhcpListClient component httpd in Tenda F451 1.0.0.7. The manipulation of the argument page results in a stack-based buffer overflow, which can be exploited remotely. This vulnerability has a CVSS score of 7.4 and is classified as HIGH severity. The attack vector is network-based, and no user interaction is required for exploitation. The scope of the vulnerability is unchanged, and the integrity and confidentiality of the system can be compromised.

Defensive priority

Defenders should prioritize verifying exposure of Tenda F451 devices running firmware version 1.0.0.7 and assessing the network for potential exploitation attempts.

Recommended defensive actions

• Verify Tenda F451 devices running firmware version 1.0.0.7 are identified and inventoried.
• Assess network exposure and potential exploitation attempts.
• Implement compensating controls to mitigate potential exploitation.
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance.
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.

Evidence notes

The CVE record and NVD vulnerability detail provide information on the vulnerability, including its CVSS score and vector. However, additional details on exploitation or affected systems are limited. Defenders should verify the exposure of Tenda F451 devices running firmware version 1.0.0.7 and assess the network for potential exploitation attempts. The lack of detailed information on affected systems or exploitation attempts necessitates a cautious approach.

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.