CVE-2012-1667

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.

Published: 2012-06-05 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2012-1667 is rated High Risk (72.1/100): CVSS High severity, with high exploitation likelihood (EPSS 53.16%, 98th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +3.84% over the last day, indicating growing attacker interest. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2012-1667

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-03-11 49.32% 53.16% +3.84%
2 2026-02-05 53.73% 49.32% -4.41%
3 2026-02-04 53.73%

Full EPSS history (28 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2012-1667

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:N/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:C)
Complete availability impact.
10.0 7.8 [email protected]

Weakness enumeration for CVE-2012-1667

OS Trackers for CVE-2012-1667

vendor priority summary link
debian unimportant CVE-2012-1667 unimportant priority: Debian including 2 source packages (bind9, isc-dhcp), 9 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 9. https://security-tracker.debian.org/tracker/CVE-2012-1667
gentoo normal CVE-2012-1667: 1 GLSA(s) (201209-04), 1 atom(s) (net-dns/bind); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2012-1667
redhat high https://access.redhat.com/security/cve/CVE-2012-1667
suse high CVE-2012-1667 severity important: SUSE including 167 source package names (bind-9.10.3P4-21.1, bind-9.11.2-1.24, …), 230 product×package rows across 35 product lines (SUSE Linux Enterprise Desktop 11 SP2, SUSE Linux Enterprise Desktop 12, … (35 product lines)): Fixed 230. https://www.suse.com/security/cve/CVE-2012-1667/
ubuntu medium CVE-2012-1667 medium priority: Ubuntu including 1 source packages (bind9), 6 status rows across 6 suites (hardy, lucid, natty, oneiric, precise, upstream): released 6. https://ubuntu.com/security/CVE-2012-1667

Affected software / configurations for CVE-2012-1667

Vendor Product Version Raw CPE
isc bind 9.0 cpe:2.3:a:isc:bind:9.0:*:*:*:*:*:*:*
isc bind 9.0.0 cpe:2.3:a:isc:bind:9.0.0:rc1:*:*:*:*:*:*
isc bind 9.0.0 cpe:2.3:a:isc:bind:9.0.0:rc2:*:*:*:*:*:*
isc bind 9.0.0 cpe:2.3:a:isc:bind:9.0.0:rc3:*:*:*:*:*:*
isc bind 9.0.0 cpe:2.3:a:isc:bind:9.0.0:rc4:*:*:*:*:*:*
isc bind 9.0.0 cpe:2.3:a:isc:bind:9.0.0:rc5:*:*:*:*:*:*
isc bind 9.0.0 cpe:2.3:a:isc:bind:9.0.0:rc6:*:*:*:*:*:*
isc bind 9.0.1 cpe:2.3:a:isc:bind:9.0.1:*:*:*:*:*:*:*
isc bind 9.0.1 cpe:2.3:a:isc:bind:9.0.1:rc1:*:*:*:*:*:*
isc bind 9.0.1 cpe:2.3:a:isc:bind:9.0.1:rc2:*:*:*:*:*:*
isc bind 9.1 cpe:2.3:a:isc:bind:9.1:*:*:*:*:*:*:*
isc bind 9.1.0 cpe:2.3:a:isc:bind:9.1.0:rc1:*:*:*:*:*:*
isc bind 9.1.1 cpe:2.3:a:isc:bind:9.1.1:*:*:*:*:*:*:*
isc bind 9.1.1 cpe:2.3:a:isc:bind:9.1.1:rc1:*:*:*:*:*:*
isc bind 9.1.1 cpe:2.3:a:isc:bind:9.1.1:rc2:*:*:*:*:*:*
isc bind 9.1.1 cpe:2.3:a:isc:bind:9.1.1:rc3:*:*:*:*:*:*
isc bind 9.1.1 cpe:2.3:a:isc:bind:9.1.1:rc4:*:*:*:*:*:*
isc bind 9.1.1 cpe:2.3:a:isc:bind:9.1.1:rc5:*:*:*:*:*:*
isc bind 9.1.1 cpe:2.3:a:isc:bind:9.1.1:rc6:*:*:*:*:*:*
isc bind 9.1.1 cpe:2.3:a:isc:bind:9.1.1:rc7:*:*:*:*:*:*
isc bind 9.1.2 cpe:2.3:a:isc:bind:9.1.2:*:*:*:*:*:*:*
isc bind 9.1.2 cpe:2.3:a:isc:bind:9.1.2:rc1:*:*:*:*:*:*
isc bind 9.1.3 cpe:2.3:a:isc:bind:9.1.3:*:*:*:*:*:*:*
isc bind 9.1.3 cpe:2.3:a:isc:bind:9.1.3:rc1:*:*:*:*:*:*
isc bind 9.1.3 cpe:2.3:a:isc:bind:9.1.3:rc2:*:*:*:*:*:*
isc bind 9.1.3 cpe:2.3:a:isc:bind:9.1.3:rc3:*:*:*:*:*:*
isc bind 9.2 cpe:2.3:a:isc:bind:9.2:*:*:*:*:*:*:*
isc bind 9.2.0 cpe:2.3:a:isc:bind:9.2.0:*:*:*:*:*:*:*
isc bind 9.2.0 cpe:2.3:a:isc:bind:9.2.0:a1:*:*:*:*:*:*
isc bind 9.2.0 cpe:2.3:a:isc:bind:9.2.0:a2:*:*:*:*:*:*
isc bind 9.2.0 cpe:2.3:a:isc:bind:9.2.0:a3:*:*:*:*:*:*
isc bind 9.2.0 cpe:2.3:a:isc:bind:9.2.0:b1:*:*:*:*:*:*
isc bind 9.2.0 cpe:2.3:a:isc:bind:9.2.0:b2:*:*:*:*:*:*
isc bind 9.2.0 cpe:2.3:a:isc:bind:9.2.0:rc1:*:*:*:*:*:*
isc bind 9.2.0 cpe:2.3:a:isc:bind:9.2.0:rc10:*:*:*:*:*:*
isc bind 9.2.0 cpe:2.3:a:isc:bind:9.2.0:rc2:*:*:*:*:*:*
isc bind 9.2.0 cpe:2.3:a:isc:bind:9.2.0:rc3:*:*:*:*:*:*
isc bind 9.2.0 cpe:2.3:a:isc:bind:9.2.0:rc4:*:*:*:*:*:*
isc bind 9.2.0 cpe:2.3:a:isc:bind:9.2.0:rc5:*:*:*:*:*:*
isc bind 9.2.0 cpe:2.3:a:isc:bind:9.2.0:rc6:*:*:*:*:*:*
isc bind 9.2.0 cpe:2.3:a:isc:bind:9.2.0:rc7:*:*:*:*:*:*
isc bind 9.2.0 cpe:2.3:a:isc:bind:9.2.0:rc8:*:*:*:*:*:*
isc bind 9.2.0 cpe:2.3:a:isc:bind:9.2.0:rc9:*:*:*:*:*:*
isc bind 9.2.1 cpe:2.3:a:isc:bind:9.2.1:*:*:*:*:*:*:*
isc bind 9.2.1 cpe:2.3:a:isc:bind:9.2.1:rc1:*:*:*:*:*:*
isc bind 9.2.1 cpe:2.3:a:isc:bind:9.2.1:rc2:*:*:*:*:*:*
isc bind 9.2.2 cpe:2.3:a:isc:bind:9.2.2:*:*:*:*:*:*:*
isc bind 9.2.2 cpe:2.3:a:isc:bind:9.2.2:p2:*:*:*:*:*:*
isc bind 9.2.2 cpe:2.3:a:isc:bind:9.2.2:p3:*:*:*:*:*:*
isc bind 9.2.2 cpe:2.3:a:isc:bind:9.2.2:rc1:*:*:*:*:*:*
isc bind 9.2.3 cpe:2.3:a:isc:bind:9.2.3:*:*:*:*:*:*:*
isc bind 9.2.3 cpe:2.3:a:isc:bind:9.2.3:rc1:*:*:*:*:*:*
isc bind 9.2.3 cpe:2.3:a:isc:bind:9.2.3:rc2:*:*:*:*:*:*
isc bind 9.2.3 cpe:2.3:a:isc:bind:9.2.3:rc3:*:*:*:*:*:*
isc bind 9.2.3 cpe:2.3:a:isc:bind:9.2.3:rc4:*:*:*:*:*:*
isc bind 9.2.4 cpe:2.3:a:isc:bind:9.2.4:*:*:*:*:*:*:*
isc bind 9.2.4 cpe:2.3:a:isc:bind:9.2.4:rc2:*:*:*:*:*:*
isc bind 9.2.4 cpe:2.3:a:isc:bind:9.2.4:rc3:*:*:*:*:*:*
isc bind 9.2.4 cpe:2.3:a:isc:bind:9.2.4:rc4:*:*:*:*:*:*
isc bind 9.2.4 cpe:2.3:a:isc:bind:9.2.4:rc5:*:*:*:*:*:*
isc bind 9.2.4 cpe:2.3:a:isc:bind:9.2.4:rc6:*:*:*:*:*:*
isc bind 9.2.4 cpe:2.3:a:isc:bind:9.2.4:rc7:*:*:*:*:*:*
isc bind 9.2.4 cpe:2.3:a:isc:bind:9.2.4:rc8:*:*:*:*:*:*
isc bind 9.2.5 cpe:2.3:a:isc:bind:9.2.5:*:*:*:*:*:*:*
isc bind 9.2.5 cpe:2.3:a:isc:bind:9.2.5:b2:*:*:*:*:*:*
isc bind 9.2.5 cpe:2.3:a:isc:bind:9.2.5:rc1:*:*:*:*:*:*
isc bind 9.2.6 cpe:2.3:a:isc:bind:9.2.6:*:*:*:*:*:*:*
isc bind 9.2.6 cpe:2.3:a:isc:bind:9.2.6:rc1:*:*:*:*:*:*
isc bind 9.2.7 cpe:2.3:a:isc:bind:9.2.7:*:*:*:*:*:*:*
isc bind 9.2.7 cpe:2.3:a:isc:bind:9.2.7:rc1:*:*:*:*:*:*
isc bind 9.2.7 cpe:2.3:a:isc:bind:9.2.7:rc2:*:*:*:*:*:*
isc bind 9.2.7 cpe:2.3:a:isc:bind:9.2.7:rc3:*:*:*:*:*:*
isc bind 9.2.8 cpe:2.3:a:isc:bind:9.2.8:*:*:*:*:*:*:*
isc bind 9.2.9 cpe:2.3:a:isc:bind:9.2.9:*:*:*:*:*:*:*
isc bind 9.2.9 cpe:2.3:a:isc:bind:9.2.9:rc1:*:*:*:*:*:*
isc bind 9.3 cpe:2.3:a:isc:bind:9.3:*:*:*:*:*:*:*
isc bind 9.3.0 cpe:2.3:a:isc:bind:9.3.0:*:*:*:*:*:*:*
isc bind 9.3.0 cpe:2.3:a:isc:bind:9.3.0:b2:*:*:*:*:*:*
isc bind 9.3.0 cpe:2.3:a:isc:bind:9.3.0:b3:*:*:*:*:*:*
isc bind 9.3.0 cpe:2.3:a:isc:bind:9.3.0:b4:*:*:*:*:*:*

References for CVE-2012-1667

URL Tags
http://lists.apple.com/archives/security-announce/2012/Sep/msg00004.html
http://lists.opensuse.org/opensuse-security-announce/2012-06/msg00005.html
http://lists.opensuse.org/opensuse-security-announce/2012-06/msg00010.html
http://marc.info/?l=bugtraq&m=134132772016230&w=2
http://rhn.redhat.com/errata/RHSA-2012-0717.html
http://rhn.redhat.com/errata/RHSA-2012-1110.html
http://secunia.com/advisories/51096
http://support.apple.com/kb/HT5501
http://www.debian.org/security/2012/dsa-2486
http://www.isc.org/software/bind/advisories/cve-2012-1667 Vendor Advisory
http://www.kb.cert.org/vuls/id/381699
http://www.mandriva.com/security/advisories?name=MDVSA-2012:089
http://www.securityfocus.com/bid/53772
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2012&m=slackware-security.536004
https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04952488
https://kb.isc.org/article/AA-00698 Vendor Advisory
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