CVE-2012-1667: ISC BIND

High severity, CVSS 8.5. EPSS: 13.3% chance of exploitation in the next 30 days.

ISC BIND 9.x before 9.7.6-P1, 9.8.x before 9.8.3-P1, 9.9.x before 9.9.1-P1, and 9.4-ESV and 9.6-ESV before 9.6-ESV-R7-P1 does not properly handle resource records with a zero-length RDATA section, which allows remote DNS servers to cause a denial of service (daemon crash or data corruption) or obtain sensitive information from process memory via a crafted record.

Affected products

• ISC BIND: version 9.0 only; version 9.0.0 only; version 9.0.1 only; version 9.1 only; version 9.1.0 only; version 9.1.1 only; …

Published 2012-06-05. Last modified 2026-06-16.