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CVE-2017-18368

Published: May 2, 2019Updated: Nov 5, 2025 Sources: CVE List NVD BDUCWE-78
NVD MITRE
9.8CVSSCRITICAL
EPSS Score
94.5%
Top 0.2%
CISA KEV
Active Exploitation
Since Aug 7, 2023
Exploits
3 Known
Remediation
Patch Available

Description

The ZyXEL P660HN-T1A v1 TCLinux Fw $7.3.15.0 v001 / 3.40(ULM.0)b31 router distributed by TrueOnline has a command injection vulnerability in the Remote System Log forwarding function, which is accessible by an unauthenticated user. The vulnerability is in the ViewLog.asp page and can be exploited through the remote_host parameter.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-78

Affected Products

P660HN-T1AZyxel Communications Corp.Networking Infrastructure
Billion 5200W-TBillion Electric Co., Ltd.
On-prem
Networking Infrastructure / router-switch
n/an/a
5200w-t firmwarebillion
Embedded
Hardware Firmware
p660hn-t1a v2 firmwarezyxelNetworking Infrastructure
zyxel communications corp.commercialTWNetworking Infrastructure
billion electric co., ltd.commercialNetworking Infrastructureaka billion m100, billion m120n, billion m150
billioncommercialHardware Firmware
zyxelcommercialTWNetworking Infrastructureaka zyxel communications corp.
and 1 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

CISA Known Exploited Vulnerability
Added to KEV:Aug 7, 2023
Remediation due:Aug 28, 2023

Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

3 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

1 technique
Execution
View detailed technique mapping

References

https://ssd-disclosure.com/ssd-advisory-zyxel-multiple-vulnerabilities/
ssd-disclosure.com
https://k0st.wordpress.com/2015/07/05/identifying-and-exploiting-rom-0-vulnerabilities/
k0st.wordpress.com
https://seclists.org/fulldisclosure/2017/Jan/40
seclists.org
and 9 more references View all →

Timeline

Published
May 2, 2019
Added to CISA KEV
Aug 7, 2023
Last Updated
Nov 5, 2025

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