CVE-2026-0420 Missing TLS certificate validation in NETGEAR's ReadyCloud client app
Attackers can intercept ReadyCloud traffic via MiTM due to missing TLS validation, compromising confidentiality on affected NETGEAR routers.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-0420?
CVE-2026-0420 is a medium-severity vulnerability in Netgear Rax120 Firmware, published on 9 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-325
Which versions are affected by CVE-2026-0420?
It affects 4 products.
Products include Netgear Rax120 Firmware, Netgear Rax35 Firmware, Netgear Rax38 Firmware, Netgear Rax40 Firmware.
How do I fix CVE-2026-0420?
No fix has been published for CVE-2026-0420 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-0420 being exploited?
There is no known exploitation of CVE-2026-0420 in the wild and no public exploit code.
Sources
Also known as GHSA-vww4-r7gr-9xvq.