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7.4
Belkin F9K1015 Router: Remote Code Execution Through Malformed Webpage Input
CVE-2026-5611
Summary
A security hole in the Belkin F9K1015 router's web interface allows an attacker to potentially execute malicious code on the router itself. This could happen remotely, without needing to be physically present. It's recommended to update the router's firmware to the latest version to fix this issue.
Original title
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...
Original description
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.
nvd CVSS2.0
9.0
nvd CVSS3.1
8.8
nvd CVSS4.0
7.4
Vulnerability type
CWE-119
Buffer Overflow
CWE-121
Stack-based Buffer Overflow
Published: 6 Apr 2026 · Updated: 6 Apr 2026 · First seen: 6 Apr 2026