CVE-2026-5526 Tenda CVE debrief

Who should care

Users of Tenda 4G03 Pro up to 1.0/1.1/04.03.01.53/192.168.0.1 should be aware of this security flaw and take necessary precautions. This includes reviewing their deployments, applying vendor remediation if available, and implementing compensating controls such as monitoring and exception tracking.

Technical summary

The vulnerability is located in the /bin/httpd file of Tenda 4G03 Pro up to 1.0/1.1/04.03.01.53/192.168.0.1. The attack may be performed from remote, and the manipulation results in improper access controls. The CVSS score of 5.5 indicates a medium severity vulnerability. Users should review their deployments and apply vendor remediation if available. This includes verifying affected product deployments exist in managed environments and assigning an owner for follow-up. 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.

Defensive priority

Medium priority due to the CVSS score of 5.5 and the potential for remote attacks.

Recommended defensive actions

• Inventory and verify affected Tenda 4G03 Pro devices
• Apply vendor remediation if available
• Implement compensating controls such as monitoring and exception tracking
• Restrict access to the /bin/httpd file
• Review 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
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record was published on 2026-04-04T23:16:44.290Z and was last modified on 2026-07-24T09:10:00.153Z. The NVD entry is currently Analyzed. The vulnerability affects Tenda 4G03 Pro up to 1.0/1.1/04.03.01.53/192.168.0.1, with an unknown functionality in the file /bin/httpd leading to improper access controls. The attack may be performed from remote. The exploit has been released to the public and may be used for attacks. Users should verify their deployments and review official advisories for mitigation steps.

Official resources