HOMEVULNERABILITIESCVE-2018-5734
HIGH

CVE-2018-5734

CWE-617Published: January 16, 2019· Updated: Jun 17, 2026

7.5
CVSS v3.1

Official Description

While handling a particular type of malformed packet BIND erroneously selects a SERVFAIL rcode instead of a FORMERR rcode. If the receiving view has the SERVFAIL cache feature enabled, this can trigger an assertion failure in badcache.c when the request doesn't contain all of the expected information. Affects BIND 9.10.5-S1 to 9.10.5-S4, 9.10.6-S1, 9.10.6-S2.

NVD Source

Technical Analysis

CVE-2018-5734 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 · 4 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/103189
ADVISORYhttp://www.securitytracker.com/id/1040438
ADVISORYhttps://kb.isc.org/docs/aa-01562
ADVISORYhttps://security.netapp.com/advisory/ntap-20180926-0005/
ADVISORYhttp://www.securityfocus.com/bid/103189
ADVISORYhttp://www.securitytracker.com/id/1040438
ADVISORYhttps://kb.isc.org/docs/aa-01562
ADVISORYhttps://security.netapp.com/advisory/ntap-20180926-0005/

All References (8)

→
http://www.securityfocus.com/bid/103189Third Party Advisory · VDB Entry
→
http://www.securitytracker.com/id/1040438Third Party Advisory · VDB Entry
→
https://kb.isc.org/docs/aa-01562Vendor Advisory
→
https://security.netapp.com/advisory/ntap-20180926-0005/Third Party Advisory
→
http://www.securityfocus.com/bid/103189Third Party Advisory · VDB Entry
→
http://www.securitytracker.com/id/1040438Third Party Advisory · VDB Entry
→
https://kb.isc.org/docs/aa-01562Vendor Advisory
→
https://security.netapp.com/advisory/ntap-20180926-0005/Third Party Advisory

Quick Facts

CVE IDCVE-2018-5734
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-617
CISA KEVNo
Affected2 vendor(s)
PublishedJan 16, 2019

Related CVEs (CWE-617)

CVE-2019-9795
9.8
CVE-2020-3615
9.8
CVE-2020-12417
8.8
CVE-2020-6619
8.8
CVE-2020-6623
8.8
CVE-2020-6617
8.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2018-5734 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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