CVE-2026-9211: CWE-20 Improper input validation in NETGEAR CAX30
An unauthenticated user on the local network can gain control of the router and make unauthorized changes to its operation.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-9211) affects the NETGEAR CAX30 router and involves improper input validation (CWE-20). An unauthenticated attacker on the local network can exploit this flaw to gain control over the router and alter its operation without authorization. The CVSS 4.0 base score is 5.2 (medium severity), reflecting the attack vector as adjacent network with low complexity and no user interaction required. The vulnerability has been published but no vendor remediation or patch information is currently available.
Potential Impact
An attacker on the local network can gain unauthorized control of the NETGEAR CAX30 router, potentially allowing changes to device configuration and operation. This could lead to disruption of network services or compromise of network security. There are no known exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict local network access to trusted users only and monitor for suspicious activity. No official remediation or temporary fixes have been provided by NETGEAR as of the publication date.
CVE-2026-9211: CWE-20 Improper input validation in NETGEAR CAX30
Description
An unauthenticated user on the local network can gain control of the router and make unauthorized changes to its operation.
CVSS v4.0
Score 5.2medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-9211) affects the NETGEAR CAX30 router and involves improper input validation (CWE-20). An unauthenticated attacker on the local network can exploit this flaw to gain control over the router and alter its operation without authorization. The CVSS 4.0 base score is 5.2 (medium severity), reflecting the attack vector as adjacent network with low complexity and no user interaction required. The vulnerability has been published but no vendor remediation or patch information is currently available.
Potential Impact
An attacker on the local network can gain unauthorized control of the NETGEAR CAX30 router, potentially allowing changes to device configuration and operation. This could lead to disruption of network services or compromise of network security. There are no known exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict local network access to trusted users only and monitor for suspicious activity. No official remediation or temporary fixes have been provided by NETGEAR as of the publication date.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- NETGEAR
- Date Reserved
- 2026-05-21T17:29:03.440Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a283e9f8dd33fbd8553f791
Added to database: 06/09/2026, 16:26:07 UTC
Last enriched: 06/17/2026, 08:48:16 UTC
Last updated: 07/31/2026, 19:23:00 UTC
Views: 64
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