CVE-2026-6133 Tenda CVE debrief

Who should care

Defenders responsible for Tenda F451 devices, network administrators, and security teams should assess exposure and implement compensating controls. They should prioritize verifying exposure of Tenda F451 devices with firmware version 1.0.0.7_cn_svn7958 and assessing the network context for potential remote exploitation.

Why it matters

Defenders should prioritize verifying exposure of Tenda F451 devices with firmware version 1.0.0.7_cn_svn7958 and assessing the network context for potential remote exploitation.

• Remote exploitation of Tenda F451 devices
• Potential for stack-based buffer overflow attacks
• Verification of firmware versions and configurations required

Technical summary

The vulnerability affects the fromSafeUrlFilter function in the /goform/SafeUrlFilter file of Tenda F451 devices with firmware version 1.0.0.7_cn_svn7958, allowing for remote exploitation. The vulnerability has a high impact on confidentiality, integrity, and availability. The attack can be executed remotely, and the exploit is publicly available. Defenders should prioritize verifying exposure of Tenda F451 devices with firmware version 1.0.0.7_cn_svn7958 and assessing the network context for potential remote exploitation.

Defensive priority

Defenders should prioritize verifying exposure of Tenda F451 devices with firmware version 1.0.0.7_cn_svn7958 and assessing the network context for potential remote exploitation.

Recommended defensive actions

• Verify Tenda F451 device firmware versions and configurations
• Assess network exposure and remote access
• Implement compensating controls for remote exploitation
• Review vendor guidance for patching
• Conduct vulnerability scanning
• Monitor network traffic for suspicious activity
• Track exceptions and retest remediated assets

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, including its description, CVSS score, and affected product information. The vulnerability affects Tenda F451 devices with firmware version 1.0.0.7_cn_svn7958. The attack can be executed remotely, and the exploit is publicly available. Defenders should verify exposure and implement compensating controls.

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.