HOMEVULNERABILITIESCVE-2017-14021
CRITICAL

CVE-2017-14021

CWE-321Published: November 1, 2017· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

A Use of Hard-coded Cryptographic Key issue was discovered in Korenix JetNet JetNet5018G version 1.4, JetNet5310G version 1.4a, JetNet5428G-2G-2FX version 1.4, JetNet5628G-R version 1.4, JetNet5628G version 1.4, JetNet5728G-24P version 1.4, JetNet5828G version 1.1d, JetNet6710G-HVDC version 1.1e, and JetNet6710G version 1.1. An attacker may gain access to hard-coded certificates and private keys allowing the attacker to perform man-in-the-middle attacks.

NVD Source

Technical Analysis

CVE-2017-14021 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 complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

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

Affected Vendors & Products

korenix18 product(s)
jetnet5018g firmwarejetnet 5018gjetnet5310g firmwarejetnet 5310gjetnet5428g-2g-2fx firmwarejetnet 5428g-2g-2fxjetnet5628g firmwarejetnet 5628gjetnet5628g-r firmwarejetnet 5628g-rjetnet5728g-24p firmwarejetnet 5728g-24p+6
Source: NVD CPE · 18 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/101598
ADVISORYhttps://ics-cert.us-cert.gov/advisories/ICSA-17-299-01
ADVISORYhttp://www.securityfocus.com/bid/101598
ADVISORYhttps://ics-cert.us-cert.gov/advisories/ICSA-17-299-01

All References (4)

→
http://www.securityfocus.com/bid/101598Third Party Advisory · VDB Entry
→
https://ics-cert.us-cert.gov/advisories/ICSA-17-299-01Third Party Advisory · US Government Resource
→
http://www.securityfocus.com/bid/101598Third Party Advisory · VDB Entry
→
https://ics-cert.us-cert.gov/advisories/ICSA-17-299-01Third Party Advisory · US Government Resource

Quick Facts

CVE IDCVE-2017-14021
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-321
CISA KEVNo
Affected1 vendor(s)
PublishedNov 1, 2017

Related CVEs (CWE-321)

CVE-2014-5419
10.0
CVE-2024-30207
10.0
CVE-2016-9335
10.0
CVE-2024-35344
9.9
CVE-2022-29186
9.8
CVE-2021-0266
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2017-14021 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.COM. CVE data is provided under the NVD usage policy.
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