CVE-2026-4566
Belkin F9K1122 formWISP5G stack-based overflow
Vexday Risk Score
21Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 8.7EPSS 0.7%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
23 Mar 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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.
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
Affected products
Belkin · F9K1122Want to know if your infrastructure is exposed to this?
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