This query lists the 10 devices in your tenant with the most exploitable vulnerabilities.
let ExploitableVulnerabilities = DeviceTvmSoftwareVulnerabilitiesKB
| where IsExploitAvailable == 1
| project CveId;
DeviceTvmSoftwareVulnerabilities
| where CveId in (ExploitableVulnerabilities)
| summarize TotalExploitableVulns = dcount(CveId), ExploitableCVE = make_set(CveId) by DeviceId
| top 10 by TotalExploitableVulns