CVE-2026-5611 HIGH

CVE-2026-5611: Belkin F9K1015 formCrossBandSwitch stack-based overflow

Vendor Belkin
Product F9K1015
Weakness CWE-121
Published April 6, 2026
Last update April 7, 2026

CVSS base score

8.7/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS 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

What the vulnerability does

01Description

A vulnerability was found in Belkin F9K1015 1.00.10. This affects the function formCrossBandSwitch of the file /goform/formCrossBandSwitch. Performing a manipulation of the argument webpage results in stack-based buffer overflow. The attack can be initiated remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.

Key dates

02Disclosure timeline

April 6, 2026 CVE published
April 7, 2026 Record updated