Is CVE-2026-0420 in the CISA KEV catalog?

No. CVE-2026-0420 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-0420?

CVE-2026-0420 has a CVSS v3 base score of 5.9 (MEDIUM).

What is the EPSS score for CVE-2026-0420?

CVE-2026-0420 has an EPSS score of 0.14% (3th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-0420?

Upgrade rax120 firmware to 1.2.9.52 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2026-0420

MEDIUM

5.9

CVSS v3

NVD

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.

CWE-325

How to fix

Remediation Available

rax120 firmwareNVD

Affected:< 1.2.9.52Fixed in:1.2.9.52CVE-2026-0420derived from NVD

rax35 firmwareNVD

Affected:< 1.0.6.106Fixed in:1.0.6.106CVE-2026-0420derived from NVD

rax38 firmwareNVD

Affected:< 1.0.6.106Fixed in:1.0.6.106CVE-2026-0420derived from NVD

rax40 firmwareNVD

Affected:< 1.0.6.106Fixed in:1.0.6.106CVE-2026-0420derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploit Intelligence

0.14%probability of exploitation in 30 days

3rdpercentile

Low risk: more likely to be exploited than 3% of all known CVEs.

References

Vendor Advisory1

kb.netgear.com

Product4

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-18.