CVE-2018-25125

Netis DL4322D RTK 2.1.1 FTP Service DoS

Published Nov 14, 2025 CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Description
Netis ADSL Router DL4322D firmware RTK 2.1.1 contains a buffer overflow vulnerability in the embedded FTP service that allows an authenticated remote user to trigger a denial of service. After logging in to the FTP service, sending an FTP command such as ABOR with an excessively long argument causes the service, and in practice the router, to crash or become unresponsive, resulting in a loss of availability for the device and connected users.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
CPEs cpe:2.3:o:netis-systems:dl4343_firmware:-:*:*:*:*:*:*:* cpe:2.3:h:netis-systems:dl4322d:-:*:*:*:*:*:*:*
Vendors & Products Netis-systems dl4343 Firmware
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Netis-systems dl4343 Firmware
CPEs cpe:2.3:o:netis-systems:dl4343_firmware:-:*:*:*:*:*:*:*
Vendors & Products Netis-systems dl4343 Firmware
Type Values Removed Values Added
First Time appeared Netis-systems
Netis-systems dl4322d
Vendors & Products Netis-systems
Netis-systems dl4322d
Type Values Removed Values Added
Description Netis ADSL Router DL4322D firmware RTK 2.1.1 contains a buffer overflow vulnerability in the embedded FTP service that allows an authenticated remote user to trigger a denial of service. After logging in to the FTP service, sending an FTP command such as ABOR with an excessively long argument causes the service, and in practice the router, to crash or become unresponsive, resulting in a loss of availability for the device and connected users.
Title Netis DL4322D RTK 2.1.1 FTP Service DoS
Weaknesses CWE-120
References
Metrics cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Apr 7, 2026, 2:03 PM
Reserved
Oct 29, 2025, 9:01 PM
Status
Deferred
Published
Nov 14, 2025, 11:15 PM
Modified
Jun 17, 2026, 1:54 AM