CVE-2026-4566
High
Description
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.
SeverityHigh
CVSS8.8
Exploit probability—
ProductBelkin F9k1122 Firmware
PublishedMar 23, 2026
First seenMar 23, 2026
Weakness typeCWE-121CWE-121CWE-119Memory buffer bounds error
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| belkin f9k1122_firmware | 1.00.33 | — |
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