CVE-2012-5166
HIGHEPSS 98th pctlDescription
ISC BIND 9.x before 9.7.6-P4, 9.8.x before 9.8.3-P4, 9.9.x before 9.9.1-P4, and 9.4-ESV and 9.6-ESV before 9.6-ESV-R7-P4 allows remote attackers to cause a denial of service (named daemon hang) via unspecified combinations of resource records.
How to fix
TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works
Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v2 Vector
No CVSS vector data available.
Exploit Intelligence
Very high risk: more likely to be exploited than 98% of all known CVEs.
References
- aix.software.ibm.com
- lists.apple.com
- lists.fedoraproject.org
- lists.fedoraproject.org
- lists.fedoraproject.org
- lists.opensuse.org
- lists.opensuse.org
- osvdb.org
- rhn.redhat.com
- rhn.redhat.com
- rhn.redhat.com
- secunia.com
- secunia.com
- secunia.com
- secunia.com
- secunia.com
- secunia.com
- secunia.com
- secunia.com
- support.apple.com
- debian.org
- ibm.com
- ibm.com
- ibm.com
- ibm.com
- ibm.com
- ibm.com
- ibm.com
- isc.org
- mandriva.com
- oracle.com
- securityfocus.com
- slackware.com
- xerox.com
- blogs.oracle.com
- h20564.www2.hpe.com
- oval.cisecurity.org
Related Vulnerabilities
Other CWE-189 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2015-1538 | High | 10.0 | 99% | - | - |
| CVE-2006-3747 | High | 7.6 | 96% | - | Fix |
| CVE-2007-0071 | High | 9.3 | 93% | - | - |
| CVE-2015-3829 | High | 10.0 | 90% | - | - |
| CVE-2015-3864 | High | 10.0 | 87% | - | - |
| CVE-2015-1539 | High | 10.0 | 86% | - | - |
Common questions
How do I fix CVE-2012-5166?
Upgrade bind9 on debian 11 to 1:9.8.1.dfsg.P1-4.3 or later.
Is CVE-2012-5166 being actively exploited?
Not that we know of. CVE-2012-5166 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 34.2% is the estimated probability that it will be exploited in the next 30 days. That is higher than 98% of all scored CVEs.
How severe is CVE-2012-5166?
CVE-2012-5166 has a CVSS v2 base score of 7.8, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
What does CVE-2012-5166 affect?
Published advisories record a fix for bind9 (Debian). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.
Embed a live status badge for CVE-2012-5166
Markdown
[](https://tridentstack.com/cve/CVE-2012-5166)HTML
<a href="https://tridentstack.com/cve/CVE-2012-5166"><img src="https://tridentstack.com/cve/badge/CVE-2012-5166.svg" alt="CVE-2012-5166"></a>Find and fix vulnerabilities across your fleet
TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.
This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-29.