A vulnerability labeled as problematic has been found in ISC BIND up to 9.18.48/9.18.48-S1/9.20.22/9.20.22-S1/9.21.21 . This affects an unknown function of the component Resolver State Machine . The manipulation results in unchecked input for loop condition. This vulnerability was named CVE-2026-5950 . The attack may be performed from remote. There is no available exploit.