What’s Vulnerable › Vulnerabilities

CVE-2026-0420: Missing TLS certificate validation in NETGEAR's ReadyCloud client app

• Severity: medium (CVSS 5.9 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-09 · updated 2026-07-23
• Weakness: CWE-325

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.

Affected products

• NETGEAR Rax120 Firmware: before 1.2.9.52 — fixed in 1.2.9.52
• NETGEAR Rax35 Firmware: before 1.0.6.106 — fixed in 1.0.6.106
• NETGEAR Rax38 Firmware: before 1.0.6.106 — fixed in 1.0.6.106
• NETGEAR Rax40 Firmware: before 1.0.6.106 — fixed in 1.0.6.106

How to fix

Upgrade to a fixed version: NETGEAR Rax120 Firmware 1.2.9.52; NETGEAR Rax35 Firmware 1.0.6.106; NETGEAR Rax38 Firmware 1.0.6.106; NETGEAR Rax40 Firmware 1.0.6.106. Check the vendor advisory for mitigations.

References

• https://kb.netgear.com/000070811/June-2026-NETGEAR-Security-Advisory
• https://www.netgear.com/support/product/rax120v2/
• https://www.netgear.com/support/product/rax35/
• https://www.netgear.com/support/product/rax38/
• https://www.netgear.com/support/product/rax40/

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