VULNERABILITY INTELLIGENCE
CVE-2012-1193
CVSS score6.4 MEDIUM
EPSS probability5.62%
CISA KEVNot currently listed
Published2012-02-17
Last modified2026-06-16
CVSS vectorAV:N/AC:L/Au:N/C:N/I:P/A:P
Description
The resolver in PowerDNS Recursor (aka pdns_recursor) 3.3 overwrites cached server names and TTL values in NS records during the processing of a response to an A record query, which allows remote attackers to trigger continued resolvability of revoked domain names via a "ghost domain names" attack.