Netgear RAX120v1/RAX120v2/RAX35/RAX38/RAX40 prior 1.2.9.52 TLS Certificate Validation missing cryptographic step

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.6$0-$5k1.27-

Summaryinfo

A vulnerability was found in Netgear RAX120v1, RAX120v2, RAX35, RAX38 and RAX40. It has been rated as problematic. This affects an unknown part of the component TLS Certificate Validation Handler. Performing a manipulation results in missing cryptographic step. This vulnerability is cataloged as CVE-2026-0420. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Netgear RAX120v1, RAX120v2, RAX35, RAX38 and RAX40. It has been classified as problematic. This affects an unknown function of the component TLS Certificate Validation Handler. The manipulation with an unknown input leads to a missing cryptographic step vulnerability. CWE is classifying the issue as CWE-325. The product does not implement a required step in a cryptographic algorithm, resulting in weaker encryption than advertised by the algorithm. This is going to have an impact on integrity. The summary by CVE is:

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.

The weakness was shared by talsonor. The advisory is shared at netgear.com. This vulnerability is uniquely identified as CVE-2026-0420 since 12/03/2025. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/09/2026). MITRE ATT&CK project uses the attack technique T1600 for this issue.

Upgrading to version 1.2.9.52 eliminates this vulnerability.

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Productinfo

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Vendor

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License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 3.7
VulDB Meta Temp Score: 3.6

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Missing cryptographic step
CWE: CWE-325
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: RAX120v1/RAX120v2/RAX35/RAX38/RAX40 1.2.9.52

Timelineinfo

12/03/2025 CVE reserved
06/09/2026 +187 days Advisory disclosed
06/09/2026 +0 days VulDB entry created
06/09/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: netgear.com

Advisory: netgear.com
Researcher: talsonor
Status: Confirmed

CVE: CVE-2026-0420 (🔒)
GCVE (CVE): GCVE-0-2026-0420
GCVE (VulDB): GCVE-100-369789

Entryinfo

Created: 06/09/2026 20:58
Changes: 06/09/2026 20:58 (34), 06/09/2026 20:59 (34)
Complete: 🔍
Cache ID: 216::103

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