CVE-2017-14000

An Improper Authentication issue was discovered in Ctek SkyRouter Series 4200 and 4400, all versions prior to V6.00.11. By accessing a specific uniform resource locator (URL) on the web server, a malicious user is able to access the application without authenticating.

Published: 2017-10-05 Last update: 2026-05-13 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2017-14000 is rated Moderate Risk (64.1/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 1.05%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2017-14000

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-08-02 1.42% 1.05% -0.37%
2 2025-04-20 1.49% 1.42% -0.07%
3 2025-03-30 — 1.49% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-14000

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.4 3.0 CRITICAL
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
 3.9 5.5 [email protected]
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2017-14000

Affected software / configurations for CVE-2017-14000

Vendor Product Version Raw CPE
ctekproducts skyrouter_z4200_firmware <= 6.00.05 cpe:2.3:o:ctekproducts:skyrouter_z4200_firmware:*:*:*:*:*:*:*:*
ctekproducts skyrouter_z4400_firmware <= 6.00.05 cpe:2.3:o:ctekproducts:skyrouter_z4400_firmware:*:*:*:*:*:*:*:*

References for CVE-2017-14000

URL Tags
http://www.securityfocus.com/bid/100953 Third Party Advisory VDB Entry
https://ics-cert.us-cert.gov/advisories/ICSA-17-264-02 Third Party Advisory US Government Resource
cvelogic Threat Intelligence