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Bind CVE-2016-9444

HIGH
Improper Input Validation (CWE-20)
2017-01-12 cve@mitre.org
Denial Of Service Bind Isc
7.5
CVSS 3.0 · NVD
View

Vulnerability Assessment

Weakness
CWE
CWE-20
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V2 - Validation and Business Logic Input validation, allowlisting
Impact

CVSS score of 7.5 (HIGH). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. EPSS exploitation probability: 50.46%.
Exploit ScenarioDerived

This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the high-severity affected system.
Act Now Prioritize within 24-48h. Why: HIGH severity + EPSS > 10%.
Patch available 50.5% exploitation probability (EPSS)

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AnalysisAI

named in ISC BIND 9.x before 9.9.9-P5, 9.10.x before 9.10.4-P5, and 9.11.x before 9.11.0-P2 allows remote attackers to cause a denial of service (assertion failure and daemon exit) via a crafted DS. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Epss exploitation probability 50.5%.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

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Technical ContextAI · show details

This vulnerability is classified under CWE-20. named in ISC BIND 9.x before 9.9.9-P5, 9.10.x before 9.10.4-P5, and 9.11.x before 9.11.0-P2 allows remote attackers to cause a denial of service (assertion failure and daemon exit) via a crafted DS resource record in an answer. Affected products include: Isc Bind. Version information: before 9.9.9.

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  • Exploit and PoC references, threat intelligence from 22 sources
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Severity by source

NVD PRIMARY 7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

DescriptionCVE.org

named in ISC BIND 9.x before 9.9.9-P5, 9.10.x before 9.10.4-P5, and 9.11.x before 9.11.0-P2 allows remote attackers to cause a denial of service (assertion failure and daemon exit) via a crafted DS resource record in an answer.

Threat Intelligence Overview

EPSS Score
50.5%
Top 2% exploitable
Data Quality
3 sources
Confidence: Low
NVD CVE.org EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 50.5%
Patch available Yes
Active threat No
Deciding rule
HIGH severity + EPSS > 10%
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact· derived
Medium

Priority Score

88
Low Medium High Critical
KEV: 0
EPSS: +50
CVSS: +38
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Denial of Service MEDIUM

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

Affected Products (CPE)CVE.org

cpe:2.3:a:isc:bind:9.0:*:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.0.0:rc1:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.0.0:rc2:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.0.0:rc3:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.0.0:rc4:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.0.0:rc5:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.0.0:rc6:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.0.1:*:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.0.1:rc1:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.0.1:rc2:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.1:*:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.1.0:rc1:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.1.1:*:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.1.1:rc1:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.1.1:rc2:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.1.1:rc3:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.1.1:rc4:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.1.1:rc5:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.1.1:rc6:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.1.1:rc7:*:*:*:*:*:*
+ 298 more

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CVE-2015-8000 MEDIUM
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CVE-2016-2848 HIGH
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Same weakness CWE-20 – Improper Input Validation

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CVE-2019-0604 CRITICAL POC
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Same technique Denial Of Service

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CVE-2014-1761 HIGH POC
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CVE-2011-0609 HIGH POC
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References

Advisories & patches
PATCH https://kb.isc.org/article/AA-01441/74/CVE-2016-9444 REF http://rhn.redhat.com/errata/RHSA-2017-0062.html REF http://www.debian.org/security/2017/dsa-3758 REF http://www.securityfocus.com/bid/95393 REF http://www.securitytracker.com/id/1037582 REF https://access.redhat.com/errata/RHSA-2017:1583 REF https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05381687 REF https://security.gentoo.org/glsa/201708-01 REF https://security.netapp.com/advisory/ntap-20180926-0005/

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