The resolver in Unbound before 1.4.11 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.
CVE-2012-1192
NONECVSS 0.0
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: 1%CVSS: —Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- —
- EG Score
- 0.0(none)
- EPSS
- 69.8%
- KEV
- Not listed
Published
February 17, 2012
Last Modified
April 29, 2026
References (2)
- cve@mitrehttps://www.isc.org/files/imce/ghostdomain_camera.pdf
- af854a3a-2127-422b-91ae-364da2661108https://www.isc.org/files/imce/ghostdomain_camera.pdf
Frequently asked(4)
What is CVE-2012-1192?
CVE-2012-1192 is a none vulnerability published on February 17, 2012. The resolver in Unbound before 1.4.11 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.
When was CVE-2012-1192 disclosed?
CVE-2012-1192 was first published in the National Vulnerability Database on February 17, 2012, with the most recent update on April 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2012-1192 actively exploited?
CVE-2012-1192 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 69.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2012-1192?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2012-1192, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2012-1192
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