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CVE-2016-9147

30
FAUCET Score

CVE-2016-9147 is a high-severity denial-of-service vulnerability affecting specific versions of ISC BIND (9.9.9-P4, 9.9.9-S6, 9.10.4-P4, and 9.11.0-P1). Remote attackers can exploit this flaw by sending a crafted DNSSEC response with inconsistent RRsets, leading to an assertion failure and daemon exit. With a CVSS score of 7.5, this vulnerability is easily exploitable over the network with low attack complexity, resulting in a complete loss of availability for the affected DNS server. While there is no known public exploit code or active exploitation, the vulnerability has garnered significant community discussion and media coverage, indicating its potential impact.

Impacted Technologies

VendorProductVersion(s)CPE
9.9.9CPE matchmatch criteria
cpe:2.3:a:isc:bind:9.9.9:p4:*:*:*:*:*:*
9.9.9CPE matchmatch criteria
cpe:2.3:a:isc:bind:9.9.9:s6:*:*:*:*:*:*
9.10.4CPE matchmatch criteria
cpe:2.3:a:isc:bind:9.10.4:p4:*:*:*:*:*:*
9.11.0CPE matchmatch criteria
cpe:2.3:a:isc:bind:9.11.0:p1:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
24.60%
Probability of exploitation in next 30 days
EPSS Percentile
97.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.2460 is in the 96th percentile among its peer group of 51,485 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (12)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: bind-30:9.3.6-25.P1.el5_11.12
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: bind97-32:9.7.0-21.P2.el5_11.10
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: bind-32:9.8.2-0.47.rc1.el6_8.4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6.2 Advanced Update SupportFixed in: bind-32:9.7.3-8.P3.el6_2.9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6.4 Advanced Update SupportFixed in: bind-32:9.8.2-0.17.rc1.el6_4.12
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6.5 Advanced Update SupportFixed in: bind-32:9.8.2-0.23.rc1.el6_5.7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6.5 Telco Extended Update SupportFixed in: bind-32:9.8.2-0.23.rc1.el6_5.7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6.6 Advanced Update SupportFixed in: bind-32:9.8.2-0.30.rc1.el6_6.9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6.6 Telco Extended Update SupportFixed in: bind-32:9.8.2-0.30.rc1.el6_6.9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6.7 Extended Update SupportFixed in: bind-32:9.8.2-0.37.rc1.el6_7.11
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: bind-32:9.9.4-38.el7_3.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.2 Extended Update SupportFixed in: bind-32:9.9.4-29.el7_2.6
View patch

Vendor Advisories (1)

redhatCVE-2016-9147Important

bind: assertion failure while handling a query response containing inconsistent DNSSEC information

Jan 11, 2017

References

rhn.redhat.com / errata/RHSA-2017-0062.html
rhn.redhat.com / errata/RHSA-2017-0063.html
rhn.redhat.com / errata/RHSA-2017-0064.html
access.redhat.com / errata/RHSA-2017:1582
access.redhat.com / errata/RHSA-2017:1583
kb.isc.org / article/AA-01440/74/CVE-2016-9147
PatchVendor Advisory
security.gentoo.org / glsa/201708-01
security.netapp.com / advisory/ntap-20180926-0005
debian.org / security/2017/dsa-3758
securityfocus.com / bid/95390
securitytracker.com / id/1037582