CVE-2019-6465: ISC BIND

Medium severity, CVSS 5.3. EPSS: 3.7% chance of exploitation in the next 30 days.

Controls for zone transfers may not be properly applied to Dynamically Loadable Zones (DLZs) if the zones are writable Versions affected: BIND 9.9.0 -> 9.10.8-P1, 9.11.0 -> 9.11.5-P2, 9.12.0 -> 9.12.3-P2, and versions 9.9.3-S1 -> 9.11.5-S3 of BIND 9 Supported Preview Edition. Versions 9.13.0 -> 9.13.6 of the 9.13 development branch are also affected. Versions prior to BIND 9.9.0 have not been evaluated for vulnerability to CVE-2019-6465.

Affected products

• ISC BIND: from 9.9.0, up to and including 9.10.7; from 9.11.0, up to and including 9.11.4; from 9.12.0, up to and including 9.12.2; from 9.13.0, up to and including 9.13.6; version 9.9.3 only; version 9.10.8 only; …
• Red Hat Enterprise Linux: version 8.0 only

Published 2019-10-09. Last modified 2026-06-17.