CVE-2012-1193: powerdns powerdns_recursor
Vulnerability summary
CVE-2012-1193 is a medium (CVSS 6.4) vulnerability in powerdns powerdns_recursor. EPSS estimates a 5.62% chance of exploitation in the next 30 days, higher than 92.8% of scored vulnerabilities. 1 public exploit is recorded.
Timeline
- 17-02-2012PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
5.62%
Chance of exploitation in the next 30 days
Percentile
93%
Versus all other CVEs
30-day change
-0.32 pp
From 5.94% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (isc.org)
Maturity: unknown
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Powerdns1 product
Ubuntu1 product
- pdns-recursor< 3.5.3-1
2 vendors · 2 products
References
7 links- lists.fedoraproject.org/pipermail/package-announce/2013-May/104177.htmlVendor AdvisoryX Refsource FEDORA
- lists.fedoraproject.org/pipermail/package-announce/2013-April/102729.htmlVendor AdvisoryX Refsource FEDORA
- lists.fedoraproject.org/pipermail/package-announce/2013-May/104173.htmlVendor AdvisoryX Refsource FEDORA