HOMEVULNERABILITIESCVE-2016-9778
HIGH

CVE-2016-9778

CWE-388Published: January 16, 2019· Updated: Jun 17, 2026

7.5
CVSS v3.1

Official Description

An error in handling certain queries can cause an assertion failure when a server is using the nxdomain-redirect feature to cover a zone for which it is also providing authoritative service. A vulnerable server could be intentionally stopped by an attacker if it was using a configuration that met the criteria for the vulnerability and if the attacker could cause it to accept a query that possessed the required attributes. Please note: This vulnerability affects the "nxdomain-redirect" feature, which is one of two methods of handling NXDOMAIN redirection, and is only available in certain versions of BIND. Redirection using zones of type "redirect" is not affected by this vulnerability. Affects BIND 9.9.8-S1 -> 9.9.8-S3, 9.9.9-S1 -> 9.9.9-S6, 9.11.0-9.11.0-P1.

NVD Source

Technical Analysis

CVE-2016-9778 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Vendors & Products

isc1 product(s)
bind
netapp2 product(s)
data ontap edgesolidfire element os management node
Source: NVD CPE · 5 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://www.securityfocus.com/bid/95388
ADVISORYhttp://www.securitytracker.com/id/1037582
ADVISORYhttps://kb.isc.org/article/AA-01442/
ADVISORYhttps://security.gentoo.org/glsa/201708-01
ADVISORYhttps://security.netapp.com/advisory/ntap-20180926-0005/
ADVISORYhttp://www.securityfocus.com/bid/95388
ADVISORYhttp://www.securitytracker.com/id/1037582
ADVISORYhttps://kb.isc.org/article/AA-01442/
ADVISORYhttps://security.gentoo.org/glsa/201708-01
ADVISORYhttps://security.netapp.com/advisory/ntap-20180926-0005/

All References (10)

→
http://www.securityfocus.com/bid/95388Third Party Advisory · VDB Entry
→
http://www.securitytracker.com/id/1037582Third Party Advisory · VDB Entry
→
https://kb.isc.org/article/AA-01442/Vendor Advisory
→
https://security.gentoo.org/glsa/201708-01Third Party Advisory
→
https://security.netapp.com/advisory/ntap-20180926-0005/Third Party Advisory
→
http://www.securityfocus.com/bid/95388Third Party Advisory · VDB Entry
→
http://www.securitytracker.com/id/1037582Third Party Advisory · VDB Entry
→
https://kb.isc.org/article/AA-01442/Vendor Advisory
→
https://security.gentoo.org/glsa/201708-01Third Party Advisory
→
https://security.netapp.com/advisory/ntap-20180926-0005/Third Party Advisory

Quick Facts

CVE IDCVE-2016-9778
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-388
CISA KEVNo
Affected2 vendor(s)
PublishedJan 16, 2019

Related CVEs (CWE-388)

CVE-2017-5401
9.8
CVE-2014-9841
9.8
CVE-2014-9826
9.8
CVE-2018-1002105
9.8
CVE-2016-9965
9.8
CVE-2016-9966
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2016-9778 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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