CVE-2018-0679

Cross-site scripting vulnerability in multiple FXC Inc. network devices (Managed Ethernet switch FXC5210/5218/5224 firmware prior to version Ver1.00.22, Managed Ethernet switch FXC5426F firmware prior to version Ver1.00.06, Managed Ethernet switch FXC5428 firmware prior to version Ver1.00.07, Power over Ethernet (PoE) switch FXC5210PE/5218PE/5224PE firmware prior to version Ver1.00.14, and Wireless LAN router AE1021/AE1021PE firmware all versions) allows attacker with administrator rights to inject arbitrary web script or HTML via the administrative page.

Published: 2018-11-15 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2018-0679 is rated Low Risk (33.5/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.52%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.

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-2018-0679

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 2026-06-15 0.22% 0.52% +0.30%
2 2025-03-17 0.05% 0.22% +0.17%
3 2024-12-17 0.05%

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-0679

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.8 3.0 MEDIUM
CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N 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:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
1.7 2.7 [email protected]
3.5 2.0 LOW
AV:N/AC:M/Au:S/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
6.8 2.9 [email protected]

Weakness enumeration for CVE-2018-0679

Affected software / configurations for CVE-2018-0679

Vendor Product Version Raw CPE
fxc fxc5210_firmware < 1.00.22 cpe:2.3:o:fxc:fxc5210_firmware:*:*:*:*:*:*:*:*
fxc fxc5218_firmware < 1.00.22 cpe:2.3:o:fxc:fxc5218_firmware:*:*:*:*:*:*:*:*
fxc fxc5224_firmware < 1.00.22 cpe:2.3:o:fxc:fxc5224_firmware:*:*:*:*:*:*:*:*
fxc fxc5426f_firmware < 1.00.06 cpe:2.3:o:fxc:fxc5426f_firmware:*:*:*:*:*:*:*:*
fxc fxc5428_firmware < 1.00.07 cpe:2.3:o:fxc:fxc5428_firmware:*:*:*:*:*:*:*:*
fxc fxc5210pe_firmware < 1.00.14 cpe:2.3:o:fxc:fxc5210pe_firmware:*:*:*:*:*:*:*:*
fxc fxc5218pe_firmware < 1.00.14 cpe:2.3:o:fxc:fxc5218pe_firmware:*:*:*:*:*:*:*:*
fxc fxc5224pe_firmware < 1.00.14 cpe:2.3:o:fxc:fxc5224pe_firmware:*:*:*:*:*:*:*:*
fxc ae1021_firmware cpe:2.3:o:fxc:ae1021_firmware:*:*:*:*:*:*:*:*
fxc ae1021pe_firmware cpe:2.3:o:fxc:ae1021pe_firmware:*:*:*:*:*:*:*:*

References for CVE-2018-0679

URL Tags
http://jvn.jp/en/jp/JVN68528150/index.html Third Party Advisory
https://www.fxc.jp/news/20171228.html Mitigation Vendor Advisory
cvelogic Threat Intelligence