CVE-2026-0420

Missing TLS certificate validation in NETGEAR's ReadyCloud client app

Published Jun 9, 2026 CVSS 4.0 · 4.6 Medium EPSS < 1% KEV · Not listed
Description
An improper implementation of TLS certificate validation vulnerability found in NETGEAR's ReadyCloud client app which could allow an attacker to perform attacker-in-the-middle (MiTM) style attacks impacting the product's confidentiality. This vulnerability affects the listed NETGEAR models.

Remediation

Vendor Solution

Devices with automatic updates enabled may already have this patch applied. If not, please check the firmware version and update it to the latest. Fixed in: ProductFixed VersionRAX120v1 (EoS) V1.2.9.52 https://www.netgear.com/support/product/rax120v1 RAX120v2 Nighthawk AX12 12-Stream AX6000 WiFi Router V1.2.9.52 https://www.netgear.com/support/product/rax120v2/ RAX35 (EoS) Nighthawk AX4 4-Stream WiFi 6 Router V1.0.6.106 https://www.netgear.com/support/product/rax35/ RAX38 (EoS) Nighthawk AX4 4-Stream AX3000 WiFi Router V1.0.6.106 https://www.netgear.com/support/product/rax38/ RAX40 (EoS) Nighthawk AX4 4-Stream WiFi Router V1.0.6.106 https://www.netgear.com/support/product/rax40/ Models marked (EoS) have reached End-of-Support phase, and no security updates are planned. NETGEAR strongly recommends that you retire these devices and upgrade to a newer NETGEAR device for continued security support.

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
Description An improper implementation of TLS certificate validation vulnerability found in ReadyCloud client app which can allow an attacker to perform attacker-in-the-middle (MiTM) style attacks impacting product's confidentiality. This vulnerability affects the listed NETGEAR models. An improper implementation of TLS certificate validation vulnerability found in NETGEAR's ReadyCloud client app which could allow an attacker to perform attacker-in-the-middle (MiTM) style attacks impacting the product's confidentiality. This vulnerability affects the listed NETGEAR models.
Title Missing TLS certificate validation in ReadyCloud client app Missing TLS certificate validation in NETGEAR's ReadyCloud client app
Type Values Removed Values Added
Metrics ssvc

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

Type Values Removed Values Added
First Time appeared Netgear
Netgear rax120v1
Netgear rax120v2
Netgear rax35
Netgear rax38
Netgear rax40
Vendors & Products Netgear
Netgear rax120v1
Netgear rax120v2
Netgear rax35
Netgear rax38
Netgear rax40
Type Values Removed Values Added
Description An improper implementation of TLS certificate validation vulnerability found in ReadyCloud client app which can allow an attacker to perform attacker-in-the-middle (MiTM) style attacks impacting product's confidentiality. This vulnerability affects the listed NETGEAR models.
Title Missing TLS certificate validation in ReadyCloud client app
Weaknesses CWE-325
References
Metrics cvssV4_0

{'score': 4.6, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U'}