CVE-2015-4620: ISC BIND

High severity, CVSS 7.8. EPSS: 37.9% chance of exploitation in the next 30 days.

name.c in named in ISC BIND 9.7.x through 9.9.x before 9.9.7-P1 and 9.10.x before 9.10.2-P2, when configured as a recursive resolver with DNSSEC validation, allows remote attackers to cause a denial of service (REQUIRE assertion failure and daemon exit) by constructing crafted zone data and then making a query for a name in that zone.

Affected products

• ISC BIND: version 9.7.0 only; version 9.7.1 only; version 9.7.2 only; version 9.7.3 only; version 9.7.4 only; version 9.7.5 only; …

Published 2015-07-08. Last modified 2026-06-17.