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

Quick assessment

Affected
NETGEAR RAX120v1
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

NETGEAR RAX40等都是美国网件（NETGEAR）公司的一款无线路由器。 NETGEAR多款产品存在安全漏洞，该漏洞源于TLS证书验证实现不当，可能导致攻击者执行中间人攻击影响产品机密性。以下产品受到影响：rax120v2、rax35、rax38、rax40。

AI Predicted 7.5 Difficulty: Easy EPSS 0.14% · P2

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 5

VendorProduct Version RangeStatus
NETGEAR RAX120v1 < V1.2.9.52 affected
NETGEAR RAX120v2 < V1.2.9.52 affected
NETGEAR RAX35 < V1.0.6.106 affected
NETGEAR RAX38 < V1.0.6.106 affected
NETGEAR RAX40 < V1.0.6.106 affected
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I. Basic Information for CVE-2026-0420

Vulnerability Information
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Vulnerability Title
Missing TLS certificate validation in NETGEAR's ReadyCloud client app
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
缺少必要的密码学步骤
Source: CVE Program / CVE List V5
Vulnerability Title
NETGEAR多款产品 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
NETGEAR RAX40等都是美国网件（NETGEAR）公司的一款无线路由器。 NETGEAR多款产品存在安全漏洞，该漏洞源于TLS证书验证实现不当，可能导致攻击者执行中间人攻击影响产品机密性。以下产品受到影响：rax120v2、rax35、rax38、rax40。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
NETGEAR RAX120v1 0 ~ V1.2.9.52 -
NETGEAR RAX120v2 0 ~ V1.2.9.52 -
NETGEAR RAX35 0 ~ V1.0.6.106 -
NETGEAR RAX38 0 ~ V1.0.6.106 -
NETGEAR RAX40 0 ~ V1.0.6.106 -

II. Public POCs for CVE-2026-0420

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III. Intelligence Information for CVE-2026-0420

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Vendor Pages for CVE-2026-0420 (4)

Same Patch Batch · NETGEAR · 2026-06-09 · 17 CVEs total

CVE-2026-0412 Insufficient input validation vulnerability in NETGEAR JR6150 Web UI
CVE-2026-0414 Insufficient Input Validation Allows Unauthorized Modification of Router Software in certa
CVE-2026-0415 Insufficient input validation vulnerability in certain Orbi routers
CVE-2026-0417 Insufficient input validation in certain NETGEAR routers
CVE-2026-0418 Certain NETGEAR devices allow administrators to tamper with system
CVE-2026-0416 Improper input validation in certain NETGEAR routers allows unauthorized modification of p
CVE-2026-0410 Insufficient input validation in certain NETGEAR routers
CVE-2026-0409 Netgear Orbi 370 Series Remote Code Execution vulnerability
CVE-2026-0411 A Sensitive Information Disclosure Vulnerability in NETGEAR Orbi Satellites
CVE-2026-0419 Insufficient input validation vulnerability in NETGEAR JR6150
CVE-2026-0413 Buffer overflow vulnerability in certain NETGEAR Nighthawk routers
CVE-2026-3088 Unauthenticated users can disrupt router operation
CVE-2026-9210 Certain NETGEAR routers allow authenticated administrators to gain unintended control of t
CVE-2026-9213 Insufficient input validation in certain NETGEAR routers
CVE-2026-9211 Certain NETGEAR routers allow unauthenticated users to gain control of the router
CVE-2026-9212 Insufficient authentication and input validation in certain NETGEAR products

IV. Related Vulnerabilities

Same vendor: NETGEAR
Same weakness: CWE-325

V. Comments for CVE-2026-0420

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