cve 2026 21710

CVE-2026-21710 is a Microsoft vulnerability that causes a total loss of availability in the affected component. An attacker can exploit this flaw to disrupt operations, either by sustaining the attack or triggering a persistent condition. While it does not expose data or enable code execution, the denial-of-service impact can be operationally severe, especially for critical services. Microsoft's description emphasizes the availability risk, making this CVE notable for its potential to cause sustained disruption without requiring data compromise.