CVE-2025-12941

Denial of Service Vulnerability in NETGEAR C6220 and C6230

Published Dec 9, 2025 CVSS 4.0 · 5 Medium EPSS < 1% KEV · Not listed
Description
Denial of Service Vulnerability in NETGEAR C6220 and C6230 (DOCSIS® 3.0 Two-in-one Cable Modem + WiFi Router) allows authenticated local WiFi users reboot the router.

Remediation

Vendor Solution

NETGEAR strongly advises against allowing untrusted users or devices on your WiFi network. The NETGEAR C6220 has reached End-of-Support (EOS) and C6230 will reach EOS soon. Due to limited security impact (device reboots only), no fixes are planned.


Vendor Workaround

The users are advised to not allow untrusted devices to connect to the Wi-fi Network.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Netgear c6220 Firmware
Netgear c6230 Firmware
CPEs cpe:2.3:h:netgear:c6220:-:*:*:*:*:*:*:*
cpe:2.3:h:netgear:c6230:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:c6220_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:c6230_firmware:-:*:*:*:*:*:*:*
Vendors & Products Netgear c6220 Firmware
Netgear c6230 Firmware
Metrics cvssV3_1

{'score': 5.7, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Denial of Service Vulnerability in NETGEAR C6220 and C6230 (DOCSIS® 3.0 Two-in-one Cable Modem + WiFi Router) allows authenticated local WiFi users reboot the router.
Title Denial of Service Vulnerability in NETGEAR C6220 and C6230
First Time appeared Netgear
Netgear c6220
Netgear c6230
Weaknesses CWE-306
CPEs cpe:2.3:h:netgear:c6220:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:c6230:*:*:*:*:*:*:*:*
Vendors & Products Netgear
Netgear c6220
Netgear c6230
References
Metrics cvssV4_0

{'score': 5, 'vector': 'CVSS:4.0/AV:A/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/AU:N/R:A/V:D/RE:L/U:Amber'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
NETGEAR
Published
Updated
Dec 9, 2025, 8:44 PM
Reserved
Nov 10, 2025, 7:35 AM
Status
Analyzed
Published
Dec 9, 2025, 5:15 PM
Modified
Oct 8, 2026, 10:10 AM