CVE-2026-5611CWE-119CWE-121

Belkin F9K1015 formCrossBandSwitch stack-based overflow

High · published April 6, 2026

CVSS v4.0
8.7
EPSS
1%
Percentile
64.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
8.7 · HIGH
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
EPSS
0.01058 · 64.2th percentile
Weaknesses
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer; CWE-121 · Stack-based Buffer Overflow
Published
2026-04-06T02:00Z
EPSS history
Timeline
  • 06 APR 02:00Z
    Belkin F9K1015 formCrossBandSwitch stack-based overflow
    cvelistv5