Home/CVE/An insufficient input validation vulnerability in NETGEAR Orbi routers allows attackers connected to the router's LAN 
CVE

CVE-2026-0403

An insufficient input validation vulnerability in NETGEAR Orbi routers allows attackers connected to the router's LAN 

An insufficient input validation vulnerability in NETGEAR Orbi routers allows attackers connected to the router's LAN to execute OS command injections.

HIGH · CVSS 8 EPSS 0.00083
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-20Improper Input Validation
▤

Affected Products & Versions

10
netgear rbe971 firmware< 9.10.0.2
netgear rbe970 firmware< 9.10.0.2
netgear rbr750 firmware< 7.2.8.5
netgear rbr850 firmware< 7.2.8.5
netgear rbr860 firmware< 7.2.8.5
netgear rbs750 firmware< 7.2.8.5
netgear rbs850 firmware< 7.2.8.5
netgear rbs860 firmware< 7.2.8.5
▣

Scoring & Timeline

8
HIGH · CVSS v3.1 · a2826606-91e7-4eb6-899e-8484bd4575d5
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD13 Jan 2026 · 04:16 PM
CVSS VectorCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

11
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://kb.netgear.com/000070442/January-2026-NETGEAR-Security-AdvisoryPatchVendor Advisory
https://www.netgear.com/support/product/rbe970PatchProduct
https://www.netgear.com/support/product/rbe971PatchProduct
https://www.netgear.com/support/product/rbr750PatchProduct
https://www.netgear.com/support/product/rbr850PatchProduct
https://www.netgear.com/support/product/rbr860PatchProduct
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