EUVD-2026-14347CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
4Description
A flaw has been found in Belkin F9K1122 1.00.33. The affected element is the function formWISP5G of the file /goform/formWISP5G. Executing a manipulation of the argument webpage can lead to stack-based buffer overflow. The attack can be launched remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Analysis
Stack-based buffer overflow in Belkin F9K1122 firmware version 1.00.33 allows authenticated remote attackers to achieve complete system compromise through manipulation of the webpage parameter in the formWISP5G function. Public exploit code exists for this vulnerability and the vendor has not provided patches or responded to disclosure attempts. …
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Remediation
Within 24 hours: Identify and inventory all Belkin F9K1122 devices on the network and restrict administrative access to trusted personnel only. Within 7 days: Implement network segmentation to isolate affected routers from critical systems and deploy WAF rules to block malicious formWISP5G requests. …
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