EUVD-2026-16989CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
4Description
A weakness has been identified in Belkin F9K1122 1.00.33. The impacted element is the function formSetPassword of the file /goform/formSetPassword of the component Parameter Handler. This manipulation of the argument webpage causes stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Analysis
Stack-based buffer overflow in Belkin F9K1122 router (firmware 1.00.33) enables authenticated remote attackers to achieve complete system compromise via the formSetPassword endpoint. The vulnerability affects the Parameter Handler component and permits code execution with high impact to confidentiality, integrity, and availability. …
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Remediation
Within 24 hours: Inventory all Belkin F9K1122 routers and document firmware version 1.00.33 instances; isolate affected devices from production networks if operationally feasible. Within 7 days: Contact Belkin support to confirm patch status and end-of-life timeline; evaluate replacement router models for affected deployments. …
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