PatchTheCVECVE-2026-5567: A flaw has been found in Tenda M3 1.0.0.10
CVE-2026-5567 is a high-severity flaw (CVSS 8.8) affecting m3 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
A flaw has been found in Tenda M3 1.0.0.10. This vulnerability affects the function setAdvPolicyData of the file /goform/setAdvPolicyData of the component Destination Handler. Executing a manipulation of the argument policyType can lead to buffer overflow. The attack can be executed remotely. The exploit has been published and may be used.
Why this priority
- High severity
- Public exploit reference
No fix is published yet: follow the downgrade or mitigation steps.
Last updated 2026-07-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-5567?
m3 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2026-5567 being exploited?
CVE-2026-5567 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-5567 affect?
CVE-2026-5567 affects m3 firmware. Severity is high (CVSS 8.8). A flaw has been found in Tenda M3 1.0.0.10. This vulnerability affects the function setAdvPolicyData of the file /goform/setAdvPolicyData of the component Destination Handler. Executing a manipulation of the argument policyType can lead to
How urgent is CVE-2026-5567?
Priority 48/100. High severity; Public exploit reference