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Vulnerability record · CVE-2012-5688 · published 6 December 2012

CVE-2012-5688: Isc bind improper input validation vulnerability

Isc · Bind

ISC BIND 9.8.x before 9.8.4-P1 and 9.9.x before 9.9.2-P1, when DNS64 is enabled, allows remote attackers to cause a denial of service (assertion failure and daemon exit) via a crafted query.

7.8 CVSS 2.0 High EPSS 11% · top 4.3% CWE-20 · Improper input validation
7.8CVSS 2.0 base score
11%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
12References
16 Jun 2026Last modified by NVD

Description

ISC BIND 9.8.x before 9.8.4-P1 and 9.9.x before 9.9.2-P1, when DNS64 is enabled, allows remote attackers to cause a denial of service (assertion failure and daemon exit) via a crafted query.

AV:N/AC:L/Au:N/C:N/I:N/A:C

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.apple.com/archives/security-announce/2013/Sep/msg00002.html Mailing ListThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2012-1549.html Third Party Advisory
http://support.apple.com/kb/HT5880 Third Party Advisory
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2012&m=slackware-security.536004 Third Party Advisory
http://www.ubuntu.com/usn/USN-1657-1 Third Party Advisory
https://kb.isc.org/article/AA-00828 PatchVendor Advisory
http://lists.apple.com/archives/security-announce/2013/Sep/msg00002.html Mailing ListThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2012-1549.html Third Party Advisory
http://support.apple.com/kb/HT5880 Third Party Advisory
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2012&m=slackware-security.536004 Third Party Advisory
http://www.ubuntu.com/usn/USN-1657-1 Third Party Advisory
https://kb.isc.org/article/AA-00828 PatchVendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2012-5688), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.